Definition: to suddenly become angry Level: B2
当别人粗鲁时，我有时会发脾气。
When people are rude, I sometimes ___lose ___my ___temper.
听到坏消息后，他发了脾气。
He ___lost ___his ___temper after hearing the bad news.
在谈判中保持冷静、不发脾气很重要。
It's important to stay calm and not ___lose ___your ___temper in negotiations.
