0 a very strong interest in something that fills a person's mind or uses up all their time -- 狂热;热衷
1 a state in which someone directs all their attention to one particular thing -- 痴迷;…狂;…癖
Van Gogh suffered from acute persecution mania. 凡高患有严重的被害妄想症。
She's always cleaning - it's like a mania with her. 她总是清扫个没完——好像有洁癖。
2 a very strong interest in the stated thing, especially among a large group of people -- 狂热