Though no word was spoken, both knew what must be done.

虽然没有说话，但两人都知道必须要做什么。

youdao

He and I both knew what the deal was, and we didn't talk about it.

他和我都知道那是什么交易，但我们没有谈过。

youdao

They took a long time getting to the top, the only reward for the long years of waiting being that when they had their own newspapers, both knew what they wanted and firmly set about getting it.

他们花了很长时间才达到顶峰，多年等待的唯一回报是，当他们有了自己的报纸，他们俩都知道自己想要什么，并坚定地着手去实现它。

youdao

He had guided the flight. Both men knew they had made the flight as a team.

VOA: special.2009.03.18

Though she knew even less about radios than about southern Californians, there were to both outward patterns a hieroglyphic sense of concealed meaning, of an intent to communicate.

映入她的眼帘，虽然她对于收音机的了解,比对南加州的还要少，不过这两者都有一种,如同象形文字的意味，有一种隐蔽的，想要沟通的意图。

耶鲁公开课 - 1945年后的美国小说课程节选

so I knew him both personally and I knew him professionally.

我们在私底下以及工作上都比较了解。

写推荐书的人 - SpeakingMax英语口语达人

He laughed and said that I passed on my own though we both knew the truth.

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They both knew their respective banks would be downgraded, so they were getting their defence in early.

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They both knew where she worked, of course, and could find her there.

NEWYORKER: Shauntrelle