She was attacked by a maniac.是什么意思？

She was attacked by a maniac.

她遭到一个疯子的袭击。

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

was

v. 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（ be的过去式 ），在，存在，不受干扰；

例句
There was a terrible sadness in her eyes...
她眼神中流露出深深的悲伤。

attacked

v. 攻击，进攻，抨击( attack的过去式和过去分词 )，非难，损害；

例句
He was attacked by wild animals...
他遭到野兽的袭击。

by

prep. 在…旁边，表示方式，由于，经过；adv. 经过，表示保留或保存时用，短暂拜访；

例句
...expensive make-up that we saw being advertised by a beautiful model...
我们所见的由一位漂亮模特代言的昂贵化妆品

maniac

n. 疯子，癖好者，狂人，躁狂者；adj. 发狂的，狂热的，疯狂的；

例句
The cabin looked as if a maniac had been let loose there.
小屋看上去像是被疯子在那撒过野一样。