They took care of him because they knew that when someone did something for you, you should do something back in return.

他们照顾他是因为他们知道当有人为你付出时，你应该回报他。

youdao

After it had passed, they swam on as quickly as they could because they knew that the boat would soon return.

快艇过去之后，他们以最快的速度向前游去，因为他们知道快艇马上就要转回来。

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To test the idea, the researchers measured the density of sweat pores. Because they knew that touch receptor cells cluster around sweat pores.

为了验证这一想法，研究人员又测量了志愿者指尖的汗毛孔密度，因为他们知道触觉受体细胞总是聚集在汗毛孔周围的。

youdao

Because they knew we didn't understand that." Now he's telling these cultural tales to his 14 children,39 grandchildren and 9 great grandchildren.

VOA: standard.2009.12.11

I began with their ideas of Japan and what did they know, because I knew that they knew very little.

我先让他们写了对日本的看法,和了解多少，因为我知道他们的知识很有限。

麻省理工公开课 - 媒体、教育、市场课程节选

That's because on the date that I got this term structure everybody knew the Fed was cutting rates and they got it exactly right.

在我拿到这幅期限结构图的当天,市场获悉了联储局降息的消息,正如预测的一样

耶鲁公开课 - 金融市场课程节选

They did not recoil from their terrible duty because they knew that the freedom they defended was worth dying and killing for.

FORBES: Other Comments

As COO, our employees respected, admired, and loved Jay because they knew that he cared more about their welfare than he did about his own.

FORBES: Leadership Lessons from an Unsung Hero

Because they knew that the long, flat expanses of wall would lack Cret's enriching classical ornament, they did not go to the original quarries for the closest match.

WSJ: Barnes Collection | Tod Williams | Billie Tsien | The New Barnes Shouldn't Work��But Does | By Ada Louise Huxtable