c. 1600, "pertaining to mania; insane," from French maniaque (14c.), from Late Latin maniacus, from Greek maniakos, from mania (see mania). Borrowed at first in French form; Latinized in English from 1727. The noun is attested from 1763, from the adjective.
权威例句
1. 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。
2. My mum is turning into a religious maniac.
我妈妈正在变为一个宗教狂热分子。
3. That man is a homicidal maniac.
那人是个杀人狂。
4. He was driving like a maniac .
他发了疯似地开车。
5. He drove like a maniac. We had one near miss after another.