lose one's temper 发脾气
例句：
People tend to lose their temper when they are tired.
人们累的时候容易发脾气。
I'll be satisfied if you no longer lose your temper with me.
如果你不再对我发脾气了，我就满足了。
A:I'm so sorry that I lost my temper yesterday.
对不起，我昨天发脾气了。
B:It's not all your fault, I'm to blame too.
不全是你的错，我也应该受到责备。