The shock of his wife's death turned him into a madman.

妻子去世的打击让他变成了一个疯狂的人。

This madman used to be a university professor.

这位精神病患者曾经是一位大学教授。

He eats like a madman, as if he hasn’t eaten in a week.

他吃起饭来像一个疯子，好像一个星期都没吃饭了。

The killing was the act of a madman.

这起凶杀案是一个疯子所为。

He wanted to jump up and run outside, screaming like a madman.

他想在外面跑跳，像疯子似的尖叫。

"He drives like a madman," was all the information he vouchsafed.

“他开车时像个疯子，”这是他给予的全部信息。

The father, sitting on his cot, stared at her like a madman.

父亲坐在他的简易床上，像疯子一样盯着她。

He remembered one of Nietzsche's mad utterances wherein that madman had doubted truth.

他想起了尼采的一段话，表现了那疯子对真理的怀疑。