If you not quiet, you'll be punished.

如果你正在不安静，就会逢到惩罚。

youdao

If you not quiet, you will be punished.

如果你不安静，你将会受到惩罚。

youdao

One thing I do ask you: If you are not doing it, if you don't participate, simply just keep quiet.

我对你们的一个要求是：如果你不做、不参与，只需要保持安静。

youdao

One thing I do ask you: If you are not doing it, if you don't participate, simply just keep quiet.

我对你们的一个要求是：,如果你不做，不参与的同学，请保持安静。

哈佛公开课 - 幸福课课程节选

If you sit there and act quiet and don't, um, and you're not interacting,

如果你只是一个人坐在角落，不开口讲英语，不进行互动，

想学好英语吗？ - SpeakingMax英语口语达人

The quality upgrade will be lost if you're not in a quiet space.

WSJ: Sonic Truth

If they do not pay within three years you can sue for quiet title.

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