It is a hard nut for him to crack.

这对而言是个。

He embarrassed me with a difficult question.

出道把我住。

She handles this difficult subject with a light touch.

她处理起这种来得心应手。

Will the negotiators be able to untie the Gordian knot?

这些谈判者能够果断地解决这个吗？

He is absorbed in the calculation of that difficult maths problem.

贯注地在算那道数学。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？这可是个。

This thorny problem on the environmental protection floored the new mayor.

这个关于环境保护的棘手把新任市长住。

He put forward a baffling question.

提出个。

The dilemma presented quite a poser.

困境给人很大的。

I challenged him to make good his boast.

我给出个，让兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机动,突然想出个解决这的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要。

He is meeting the tickler successfully.

在顺利地处理着这。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐于助人，可实际上她也有。

You've posed an awkward question.

你已经提出个。

It's a hellish problem.

这是个令人讨厌的。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“个长期令我们费解的，在于判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的之。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

这的确是个，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与地面的网格形天线直保持同步，也是个尚未解决的技术。

It is a hard nut for him to crack.

这言是一个难。

He embarrassed me with a difficult question.

出一道难把我难住。

She handles this difficult subject with a light touch.

她处理起这种难来得心应手。

Will the negotiators be able to untie the Gordian knot?

这些谈判者能够果断地解决这个难吗？

He is absorbed in the calculation of that difficult maths problem.

全神贯注地在算那道数学难。

Who do you admire most? That's a toughie.

最钦佩的人是谁？这可是个难。

This thorny problem on the environmental protection floored the new mayor.

这个关于环境保护的棘手难把新任市长难住。

He put forward a baffling question.

提出一个难。

The dilemma presented quite a poser.

困境给人很大的难。

I challenged him to make good his boast.

我给出个难，让兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机一动,突然想出一个解决这一难的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要难。

He is meeting the tickler successfully.

在顺利地处理着这难。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐于助人，可实际上她也有难。

You've posed an awkward question.

经提出一个难。

It's a hellish problem.

这是一个令人讨厌的难。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“一个长期令我们费解的难，在于判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的难之一。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

这的确是个难，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

要使卫星发射出来的巨大微波束与地面的网格形天线一直保持同步，也是一个尚未解决的技术难。

It is a hard nut for him to crack.

这对他而言是难题。

He embarrassed me with a difficult question.

他出道难题把我难住。

She handles this difficult subject with a light touch.

她处理起这种难题来得心应手。

Will the negotiators be able to untie the Gordian knot?

这些谈判者能够果断地解决这难题吗？

He is absorbed in the calculation of that difficult maths problem.

他全神贯注地在算那道数学难题。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？这可是难题。

This thorny problem on the environmental protection floored the new mayor.

这关于环境保护的棘手难题把新任市长难住。

He put forward a baffling question.

他提出难题。

The dilemma presented quite a poser.

困境给人很大的难题。

I challenged him to make good his boast.

我给他出难题，让他兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机动,突然想出解决这难题的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要难题。

He is meeting the tickler successfully.

他在顺利地处理着这难题。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐于助人，可实际上她也有难题。

You've posed an awkward question.

你已经提出难题。

It's a hellish problem.

这是人讨厌的难题。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“长期我们费解的难题，在于判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的难题之。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

这的确是难题，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与地面的网格形天线直保持同步，也是尚未解决的技术难题。

It is a hard nut for him to crack.

这对而言是一难。

He embarrassed me with a difficult question.

出一道难把我难住。

She handles this difficult subject with a light touch.

她处理起这种难来得心应手。

Will the negotiators be able to untie the Gordian knot?

这些谈判者能够果断地解决这难吗？

He is absorbed in the calculation of that difficult maths problem.

全神贯注地在算那道数学难。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？这可是难。

This thorny problem on the environmental protection floored the new mayor.

这环境保护的棘手难把新任市长难住。

He put forward a baffling question.

提出一难。

The dilemma presented quite a poser.

困境给人很大的难。

I challenged him to make good his boast.

我给出难，兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机一动,突然想出一解决这一难的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要难。

He is meeting the tickler successfully.

在顺利地处理着这难。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐助人，可实际上她也有难。

You've posed an awkward question.

你已经提出一难。

It's a hellish problem.

这是一令人讨厌的难。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“一长期令我们费解的难，在判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的难之一。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

这的确是难，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与地面的网格形天线一直保持同步，也是一尚未解决的技术难。

It is a hard nut for him to crack.

对而言是一难题。

He embarrassed me with a difficult question.

出一道难题把我难住。

She handles this difficult subject with a light touch.

她处理起种难题来得心应手。

Will the negotiators be able to untie the Gordian knot?

些谈判者能够果断地解决难题吗？

He is absorbed in the calculation of that difficult maths problem.

全神贯注地在算那道数学难题。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？可是难题。

This thorny problem on the environmental protection floored the new mayor.

于环境保护的棘手难题把新任市长难住。

He put forward a baffling question.

提出一难题。

The dilemma presented quite a poser.

困境给人很大的难题。

I challenged him to make good his boast.

我给出难题，现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机一动,突然想出一解决一难题的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要难题。

He is meeting the tickler successfully.

在顺利地处理着难题。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐于助人，可实际上她也有难题。

You've posed an awkward question.

你已经提出一难题。

It's a hellish problem.

是一令人讨厌的难题。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“一长期令我们费解的难题，在于判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的难题之一。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

的确是难题，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与地面的网格形天线一直保持同步，也是一尚未解决的技术难题。

It is a hard nut for him to crack.

这对而言是一难。

He embarrassed me with a difficult question.

出一道难把我难住。

She handles this difficult subject with a light touch.

她处理起这种难来得心应手。

Will the negotiators be able to untie the Gordian knot?

这些谈判者能够果断地解决这难吗？

He is absorbed in the calculation of that difficult maths problem.

全神贯注地在算那道数学难。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？这可是难。

This thorny problem on the environmental protection floored the new mayor.

这环境保护的棘手难把新任市长难住。

He put forward a baffling question.

提出一难。

The dilemma presented quite a poser.

困境给人很大的难。

I challenged him to make good his boast.

我给出难，兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机一动,突然想出一解决这一难的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要难。

He is meeting the tickler successfully.

在顺利地处理着这难。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐助人，可实际上她也有难。

You've posed an awkward question.

你已经提出一难。

It's a hellish problem.

这是一令人讨厌的难。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“一长期令我们费解的难，在判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的难之一。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

这的确是难，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与地面的网格形天线一直保持同步，也是一尚未解决的技术难。

It is a hard nut for him to crack.

对他而言是一个难题。

He embarrassed me with a difficult question.

他出一道难题把我难住。

She handles this difficult subject with a light touch.

她处理起种难题来得心应手。

Will the negotiators be able to untie the Gordian knot?

些谈判者能够果断个难题吗？

He is absorbed in the calculation of that difficult maths problem.

他全神在算那道数学难题。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？可是个难题。

This thorny problem on the environmental protection floored the new mayor.

个关于环境保护的棘手难题把新任市长难住。

He put forward a baffling question.

他提出一个难题。

The dilemma presented quite a poser.

困境给人很大的难题。

I challenged him to make good his boast.

我给他出个难题，让他兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机一动,突然想出一个一难题的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要难题。

He is meeting the tickler successfully.

他在顺利处理着难题。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐于助人，可实际上她也有难题。

You've posed an awkward question.

你已经提出一个难题。

It's a hellish problem.

是一个令人讨厌的难题。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“一个长期令我们费的难题，在于判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的难题之一。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

的确是个难题，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与面的网格形天线一直保持同步，也是一个尚未的技术难题。

It is a hard nut for him to crack.

这对他而言是一。

He embarrassed me with a difficult question.

他出一道把我住。

She handles this difficult subject with a light touch.

她处理起这种来得心应手。

Will the negotiators be able to untie the Gordian knot?

这些谈判者能够果断地解决这吗？

He is absorbed in the calculation of that difficult maths problem.

他全神贯注地在算那道数学。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？这可是。

This thorny problem on the environmental protection floored the new mayor.

这关于环境保护的棘手把任市长住。

He put forward a baffling question.

他提出一。

The dilemma presented quite a poser.

困境给人很大的。

I challenged him to make good his boast.

我给他出，让他兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机一动,突然想出一解决这一的法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要。

He is meeting the tickler successfully.

他在顺利地处理着这。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气又乐于助人，可实际上她也有。

You've posed an awkward question.

你已经提出一。

It's a hellish problem.

这是一令人讨厌的。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“一长期令我们费解的，在于判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的之一。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

这的确是，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与地面的网格形天线一直保持同步，也是一尚未解决的技术。

It is a hard nut for him to crack.

这对他而言是一个。

He embarrassed me with a difficult question.

他出一把我住。

She handles this difficult subject with a light touch.

她处理起这种来得心应手。

Will the negotiators be able to untie the Gordian knot?

这些谈判者能够果断地解决这个吗？

He is absorbed in the calculation of that difficult maths problem.

他全神贯注地在算那数学。

Who do you admire most? That's a toughie.

你最钦佩的人是谁？这可是个。

This thorny problem on the environmental protection floored the new mayor.

这个关环境保护的棘手把新任市长住。

He put forward a baffling question.

他提出一个。

The dilemma presented quite a poser.

困境给人很大的。

I challenged him to make good his boast.

我给他出个，让他兑现自己夸下的海口。

I've just had a brainwave; I know a new approach to the difficult problem!

我刚才灵机一动,突然想出一个解决这一的新办法!

Inflation is the Government’s main bugbear.

通货膨胀是政府的主要。

He is meeting the tickler successfully.

他在顺利地处理着这。

On the surface she can be very pleasant and helpful, but underneath she’s got problems.

表面上她亲切和气助人，可实际上她也有。

You've posed an awkward question.

你已经提出一个。

It's a hellish problem.

这是一个令人讨厌的。

"A missing piece of the puzzle has always focused on pin-pointing when Gigantopithecus existed," said Rink.

“一个长期令我们费解的，在判定巨猿曾经存在的时间。”

The relapse of orthodontically rotated teeth can be a serious problem in occlusal stability after orth-odontic treatment.

扭转牙的复发是正畸临床治疗后牙稳定性的之一。

That was a stumper. We brought experts from the media, coaches, scouts, a GM or two. Nothing.

这的确是个，从媒体，教练，球探或者球队经理们那里得出的答案都各不相同。

And keeping the satellite's huge beam and the distant rectenna reliably synced up also stands as an unsolved technical issue.

而要使卫星发射出来的巨大微波束与地面的网格形天线一直保持同步，也是一个尚未解决的技术。