They are emotionally mature and should behave responsibly.

他们在情感上是成熟的，应该负责任地行事。

《柯林斯英汉双解大词典》

We behave responsibly when it comes to the community and the environment.

当我们面对社会公众和环境时，我们如终对自已的行为负责。

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Nations must have incentives to behave responsibly, or be isolated when they do not.

每个国家必须有负责任的动力，否则就会被孤立。

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We expect you to behave responsibly and we will as well. All right.

好吗？我们希望你们能表现的有责任感,我们也会这样做的，好的。

麻省理工公开课 - 计算机科学及编程导论课程节选

The vast majority of school employees trained in gun use will of course behave responsibly.

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However, people are asked to behave responsibly and take simple precautions such as removing mud from footwear and tyres.

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For their part, the advertising and toy industries alike insist they behave responsibly.

BBC: Is Mr Potato Head to blame for 'pester power' ads?