Jane's worst fault is her quick temper.

毛病是她的急性子。

Quick temper Xiao Wang is an impetuous person, and he'll do anything clear-cut and fast.

小王急性子，做什么事都愿意干脆、快。

Best known for being the founder of French opera, Lully was a strict disciplinarian with a quick temper who was notorious for his ambitious, ruthless nature.

作为法国歌剧的创始人，吕利是一个严格执行纪律者和急性子，以其野心勃勃和残忍的本性而闻名。

She always had a quick temper, and her mother was the same.

她总是脾气暴躁，她妈妈也一样。

A quick temper is my weak point.

性子急是我的缺点.

He is a good man except for his quick temper.

他人很好，就是脾气有点急。

Capello lunged at me, he always had a quick temper.

卡配罗一个箭步冲上来, 他的脾气总是那么急躁.

He is quite a good_man except for his quick temper.

他人挺好，就是有点急脾气。（或他虽然有点脾气，但人不错）

Capello lunged at me , he always had a quick temper.

卡配罗一个箭步冲上来，他的脾气总是那么急躁。

One common notion is that red hair means a quick temper.

一般的概念是红发表示脾气急躁。