They were surprised that a child could work out the problem while they themselves couldn't.

他们很奇怪一个小孩能做出那道题，而他们却不能。

youdao

They were surprised that a child should work out the problem, while they themselves couldn't.

他们很吃惊一个孩子能把这个题解出来而他们却不能。

youdao

Thus have the gods spun the thread for wretched mortals: that they live in grief while they themselves are without cares;

是神编织了可怜人的命运：他们生活在不幸之，而他们自己却不去关心；

youdao

Some insects build cocoons around themselves for protection while they grow and change.

VOA: special.2010.03.28

You can only kill just a few people while they're still defending themselves in this manner.

在他们以方阵的方式防御时,你能击杀的人数是有限的

耶鲁公开课 - 古希腊历史简介课程节选

For example, they might stick themselves with a needle while treating patients.

VOA: special.2010.02.10

"This proposed change would address consumer concerns that it is unfair that providers are currently able to raise prices, while they themselves have little choice but to accept the increase or pay a penalty to exit the contract, " said Ofcom.

BBC: Mobile and broadband contracts face Ofcom price action

Labour MP Tam Dalyell, whose constituency at the time was West Lothian, wondered how long English MPs would tolerate members from Scotland, Wales and Northern Ireland exercising an important effect on English politics while they themselves had no say in the matters outside England.

BBC: Answer sought to the West Lothian question

The firm filed last October for protection from its creditors under America's Chapter 11 bankruptcy provisions, which allow companies to continue normal operations while they restructure themselves.

ECONOMIST: The regulator takes on a tricky target