An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生黄褐斑，黑色素细胞在某些领域产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他的话中是见到的。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”的铀矿体产合面之下变质甚深的粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见的运动疾患，它的发生通常和中脑的病变有。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性的。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患的立克次体病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发生的仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病患出现感染症状时，手术治疗是唯一的选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块体中成稠密的斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆的一个重要因子。

Salt occurs naturally in sea water.

盐天然存海水中。

Dueling occurs in his writings passim.

决斗在他的作品中到处可见。

I hope this won't occur again.

我希望要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学习的机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧的事经常发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮的天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生黄褐斑，黑色素细胞在某些领域产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他话中是见不到。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“6”铀矿体产于不整合面之下变质甚深粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见运动疾患，它发生通常和中脑病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿，先天性巨尿即便没有脐尿管未闭或直肠膀胱瘘也是致死性。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患立克次体病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发生仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病患出现感染症状时，手术治疗是唯一选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块体中成稠密斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他作品中到处可见。

I hope this won't occur again.

我希望不要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学习机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧事经常发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当生，黑色素细胞在某些领域产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他的话中是见不到的。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸生在上午九点。

Who was at the helm when the collision occurred?

当碰撞生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”的铀矿体产于不整合面之下变质甚深的粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见的运动疾患，它的生通常和中脑的病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性的。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山疹热是一种人犬共患的立克次体病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验器是仅仅指示生的仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病患出现感染症状时，手术治疗是唯一的选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

铁矿很多，并且含钴，在硫化物块体中成稠密的块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土区公路路基生翻浆的一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他的作品中到处可见。

I hope this won't occur again.

我希望不要再生这种事情。

Opportunities for learning occur spontaneously every day.

学习的机会每天都会自然而然出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧的事经常生。

A new outbreak of smallpox occurred in 1928.

1928 年爆了新一轮的天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生黄褐斑，色素细胞在某些领域产生色素。

The word “gratitude” did not occur in his words.

“感激”两字在他话中是见不到。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”铀矿体产于不整合面之下变质甚深粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见运动疾，它发生通常和中脑病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共克次体病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发生仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病出现感染症状时，手术治疗是唯一选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块体中成稠密斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他作品中到处可见。

I hope this won't occur again.

我希望不要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学习机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧事经常发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生黄褐斑，黑色素细胞在某些领域产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他话中是见。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”铀矿体产于整合面之下变质甚深粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见运动疾患，它发生通常和中脑病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患立克次体病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发生仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病患出现感染症状时，手术治疗是唯一选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块体中成稠密斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他作品中处可见。

I hope this won't occur again.

我希望要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学习机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧事经常发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发黄褐斑，黑色素细胞在某些领过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他的话中是见不到的。

Police said that the blast occurred at 9 a.m.

警方说这爆炸发在上午九点。

Who was at the helm when the collision occurred?

当碰撞发时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”的铀矿于不整合面之下变质甚深的粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见的运动疾患，它的发通常和中脑的病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性的。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患的立病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发的仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病患出现感染症状时，手术治疗是唯一的选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块中成稠密的斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发翻浆的一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他的作品中到处可见。

I hope this won't occur again.

我希望不要再发这种事情。

Opportunities for learning occur spontaneously every day.

学习的机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧的事经常发。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮的天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生褐斑，黑色素细胞在某些领域产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他的话中是见不到的。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”的铀矿体产于不整合面之下变质甚深的粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见的运动疾患，它的发生通常和中脑的病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性的。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患的立克次体病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发生的仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病患出现感染症状时，手术治疗是唯一的。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

铁矿很多，并且含钴，在硫化物块体中成稠密的斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆的一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他的作品中到处可见。

I hope this won't occur again.

我希望不要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学的机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧的事经常发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮的天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生黄褐斑，黑色素细胞在某产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他的话中是见不到的。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”的铀矿产于不整合面之下变质甚深的粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见的运动疾患，它的发生通常和中脑的变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性的。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患的立克次。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

震器是仅仅指示地震发生的仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦患出现感染症状时，手术治疗是唯一的选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块中成稠密的斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆的一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他的作品中到处可见。

I hope this won't occur again.

我希望不要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学习的机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧的事经常发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮的天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生黄褐斑，黑色素细胞在某些领域产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他话中是见不到。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”铀矿体产于不整合变质甚深粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见运动疾患，它发生通常和中变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患立克次体。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发生仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦患出现感染症状时，手术治疗是唯一选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块体中成稠密斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他作品中到处可见。

I hope this won't occur again.

我希望不要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学习机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧事经常发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮天花。

An explosion will probably occur at any minute.

炸弹随时可能爆炸。

When melasma occurs, melanocytes in certain areas overproduce melanin.

当发生黄褐斑，黑色素细胞在某些领域产生过量黑色素。

The word “gratitude” did not occur in his words.

“感激”两字在他的话中是见不到的。

Police said that the blast occurred at 9 a.m.

警方说这次爆炸发生在上午九点。

Who was at the helm when the collision occurred?

当碰撞发生时,谁在掌舵?

At Scinto 6 uranium occurs in much altered dolerite below the unconformity.

“辛托6”的铀矿体产于不整合面之下变的粒玄岩中。

It occurs to me that example is always more efficacious than precept.

我想到身教重于言教。

Rubral tremor is a rare movement disorder that occurs typically with midbrain damage.

摘要红颤抖症是一种少见的运动疾患，它的发生中脑的病变有关。

If urethral obstruction occurs, congenital megaurethra is lethal without patent urachus or rectoesical fistula.

如果存在尿道梗阻，先天性巨尿道即便没有脐尿管未闭或直肠膀胱瘘也是致死性的。

Rocky Mountain spotted fever is a rickettsial disease that occurs in dogs and humans.

犬落基山斑疹热是一种人犬共患的立克次体病。

A seismoscope is an apparatus or device which only indicates that an earthquake has occurred.

验震器是仅仅指示地震发生的仪器或装置。

Surgery is the only choice of treatment if aspiration pneumonia, mediastinitis or other infections occur.

一旦病患出现感染症状时，手术治疗是唯一的选择。

Pyrite is more abundant and cobaltiferous and occurs in heavy patches in the sulfide mass.

黄铁矿很多，并且含钴，在硫化物块体中成稠密的斑块。

The diversity of temperature is an important factor for tympanites to occur in highway roadbed.

温度差异是高原冻土地区公路路基发生翻浆的一个重要因子。

Salt occurs naturally in sea water.

盐天然存于海水中。

Dueling occurs in his writings passim.

决斗在他的作品中到处可见。

I hope this won't occur again.

我希望不要再发生这种事情。

Opportunities for learning occur spontaneously every day.

学习的机会每天都会自然而然地出现。

Very often tragedies or near tragedies occurred.

悲剧或近乎悲剧的事经发生。

A new outbreak of smallpox occurred in 1928.

1928 年爆发了新一轮的天花。