maniac + noun
A maniac driver sped past us.
一个疯狂的司机从我们身边飞驰而过。
疯狂的,极度紊乱的；发狂的；癫狂的
疯狂的,极度紊乱的
wildly disordered
The maniac driver sped through the red light.
那个疯狂的司机闯了红灯。
用法提示：maniac 作为形容词，修饰“司机”，表示其行为疯狂。
She gave a maniac grin when she solved the puzzle.
她解开谜题时露出了疯狂的笑容。
用法提示：maniac 作形容词，描述“笑容”的疯狂。
His maniac obsession with cleanliness drove his roommates crazy.
他对清洁的疯狂执着让室友们抓狂。
用法提示：maniac 修饰“obsession”，表示极端的痴迷。
A maniac driver sped past us.
一个疯狂的司机从我们身边飞驰而过。
作表语时通常描述人的精神状态。
The crowd was maniac after the goal.
进球后人群变得疯狂。
用with引出导致疯狂的原因。
He was maniac with excitement.
他兴奋得发狂。
insane 强调精神错乱、在法律上无责任能力，maniac 更强调狂躁或极端行为
lunatic 带贬义且较古老，maniac 现在更常用于形容狂热或暴力
fanatic 侧重极端热情或信仰，maniac 侧重失去理智或暴力
mani(a)（词根）
mani(a) + -ic
maniac + -al
maniacal + -ly
manic + -ally
manic + depression
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