1) crazed 偏重一时由于某原因造成的状态，crazy 则偏重状态本身的持续。

• You're not crazy and you never were and you're not going to be, unless you keep on making such a commotion about nothing. (Nancy Hale)你并不疯，从来都不疯，将来也不会疯，除非你一直这样无事生非。
• ... (she) works fine, but goes crazy if she hears Murdoch's voice—just sweats and trembles all over. (Gerald Beaumont)…她干活干得不错，但是，只要听到默多克的声音，她就发疯，满头大汗，浑身发抖。
• crazed with grief伤心得发狂
• They were crazed by the famine and pestilence of that last bitter winter. (American Guide Series, Washington)…他们由于去年寒冬的饥荒和疫病而心烦意乱。

2) 复合词 X-crazed 的 X 是造成 crazed 的原因。

• a drug-crazed killer一个因为服用麻醉药而疯狂的杀手。

而 X-crazy 的 X 则是 crazy 的对象。

• a drug-crazy tramp一个发狂追求麻醉药的流浪汉。
• The kids were Nintendo crazy.孩子们玩任天堂电子游戏玩疯了。