You better calm down, or else you will get into trouble.

你最好冷静一点，不然你就有麻烦了。

youdao

If you are at home with small children it is often better to stop when they, and you, become frustrated and take some time out to do something else so everyone can calm down.

倘若你正和孩子们呆在家里，最好在你们都感到情绪低落时，出去做些其他的，让每个人都平静下来。

youdao

Once you've been able to calm down, you should be in a better position to address whatever stressful situations you're expriencing.

一旦你能够冷静下来，这正是回顾你刚刚经历过的紧张境遇的好时机。

youdao

The more you practice this, the better equipped you'll be when anxiety strikes, and the quicker you'll calm down.

CNN: Your detour to a stress-free life