Boys and girls , are you happy? If you're happy, please clap your hands. Let's dance together.

亲爱的小伙伴们，在这个美好的日子里，让我们唱起来，跳起来吧！

youdao

Let's listen to a song, please clap your hands.

让我们来听一首歌，请拍手。

youdao

If you think it is right, please clap your hands.

如果你认为正确请鼓掌；

youdao

No, don't please don't clap, not for that one.

别急着鼓掌。

麻省理工公开课 - 计算机科学及编程导论课程节选

They clap whenever they please, not just between movements but each time a dancer does something impressive.

WSJ: Theatergoers: Can I Get an Amen? | Sightings by Terry Teachout