They frequently lose their tempers and refuse to do things.

他们老是控制不了自己的脾气，或是拒绝做某些事情。

They lost their tempers and went at each other tooth and nail.

他们怒火直冒,拼死拼活地打了起来.

The police chief advised his men to keep calm and not lose their tempers.

警长劝他手下人要保持冷静，不要发脾气。