You behave with decorum when you act politely.

你举止有礼貌时就是行为得体。

youdao

And when you act more at ease, people around you will, too.

而当你表现得更轻松的时候，身边的人也会轻松许多。

youdao

When you act with a spirit of service, you can change the world.

当你有了服务精神的时候你会改变整个世界。

youdao

And,there is a serious problem when you use the term 'regime change' that you might encourage people to demonstrate,or to act in ways, where we can do absolutely nothing to protect or encourage them."

VOA: standard.2010.06.11

None. When you walk through that door it's an act of free will, and I will not have anything other than complete silence.

走过那道门,是你的自由，我不会做其他事,除非保持安静。

麻省理工公开课 - 固态化学导论课程节选

When you walk through that door, it's an act of free will.

当你走进这个门的时候，这是自由意志的选择。

麻省理工公开课 - 固态化学导论课程节选

When you begin to act with the courage you aspire to have, you build more of it.

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This will be particularly helpful in the run-up to retirement when you may need to act quickly if you are trying to secure a particular annuity rate for yourself.

BBC: Investment choices after pension auto-enrolment

Then very seldom do you come upon a space, a time like this, between act and act, when you may stop and simply be.

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