He had a temper and could be nasty...是什么意思？

He had a temper and could be nasty...

他脾气不大好，有时凶得很。

he

pron. 他，它，一个人；n. 雄性动物；

例句
Logic had prevailed and he had abandoned the idea.
最终理智占了上风，他打消了那个念头。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

temper

n. 性情，脾气，特征，（钢等）回火，怒气；vt. 调和，使回火，锻炼，缓

例句
He was about to lose his temper but checked himself in time...
他刚要发火，不过又及时克制住了。

and

conj. 和，与，而且，于是，然后，因此；

例句
I spend a lot on expensive jewelry and clothing...
我花很多钱购买昂贵的首饰和衣服。

could

aux. “can”的过去式，能够，打算，用于假设语气的条件句，用于虚拟语气的结论句；

例句
The regulations were relaxed and the prisoners could get out and about a bit.
规定有所放宽，犯人可以出去短暂放风。

be

v. 是，有，存在，做，成为，发生；aux. 用来表示某人或某物即主语本身，用来表示某人或某物属于某一群体或有某种性质；

例句
The older child should be able to prepare a simple meal...
那个年纪稍大的孩子应当会做一顿简单的饭菜。

nasty

adj. 肮脏的，下流的，令人讨厌的，恶劣的，艰险的，严重的；n. 令人不愉快的事物；

例句
A nasty surprise awaited them in Rosemary Lane.
在罗斯玛丽巷，一起严重的意外事件正等待着他们。