He did not know how he ought to behave.

他不知道自己应该怎样表现。

《牛津词典》

youdao

youdao

Some stories are religious, others are moral, like the one about how to behave when you fall in love.

VOA: standard.2009.12.11

We need to come up with an experiment in which the electron is going to be forced to behave as a wave.

我们得想出个实验,在这个实验中电子必须,要表现得像波一样。

麻省理工公开课 - 固态化学导论课程节选

Hal is behaving in exactly the way you would expect him to behave, or it to behave, if it felt fear.

哈尔准确地表现出你所期望他,或称为它,理应表现的行为方式,如果它确实感到恐惧的话

耶鲁公开课 - 死亡课程节选

The Conservative MP said it should be an offence to train a dog to behave aggressively.

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She assures me that they continue to behave themselves, even well into their teenage years.

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When you deliberately strive to behave with certainty it soon becomes your normal way of thinking.

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