The rarer it is, the more it is worth.

物以为贵。

Mispronunciation of this word is comparatively rare.

把此字发音读错的人较少。

My verse your virtues rare shall eternize.

我的诗将使你的美德长留。

It was a time when motorcars were rare.

那是汽车很罕见的时代。

That bird is very rare in this country.

那种鸟在个国家很有。

Red squirrels are now very rare in Britain.

色松鼠在英国已十分罕见了。

Ilvaite is a rare mineral of calcium-iron-bearing silicate.

黑柱石是一种少见的含钙铁硅酸盐矿物。

Pancarditis is a rare and fatal disease in newborns.

死后病理报告为金黄色葡萄球菌全心脏。

There is a rare condition known as hereditary spherocytosis.

在实验室中，可见渗透脆性增加。

Aids victims often develop a rare type of cancer.

艾滋病患者往往会罹患某种罕见的癌症。

Wild flowers such as orchids and primroses are becoming rare.

兰花和报春花类野花越来越少了。

Such a finding as this exquisite antique is rare indeed.

一件精美古物的发现确实少有。

The doctor diagnosed my illness as a rare skin disease.

医生诊断我的病为罕见的皮肤病。

The film has certainly piqued public interest in this rare bird.

部影片毫无疑问激起了公众对种有鸟类的兴趣。

Parliament has passed an Act forbidding the killing of rare animals.

国会通过了一项法令，禁止捕杀珍动物。

The plastic surgeon diagnosed my illness as a rare bone disease.

整形外科医生诊断出我的病是一种罕见的骨病。

Osteopetrosis is a rare congenital disease characterized by developmental disorder in bone.

摘要石骨症是一种少见的先天性骨发育障碍性疾病。

Cases of plant poisoning severe enough to warrant hospital admission are rare.

植物中毒严重至必须住院治疗的病例很少见。

Multiple eccrine spiradenoma is a rare and benign tumor of sweat glands.

多发性小汗腺螺旋腺瘤是一种少见的良性汗腺肿瘤。

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

摘要核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。