•I think I must be going mad.我想我肯定要疯了。

•Do I look like some mad old woman in this hat?我戴上这顶帽子看上去像个疯老太婆吗？

•[+ to infinitive] You're mad to walk home alone at this time of night.你发疯了，晚上这个时候独自一人走回家。

•He must be mad spending all that money on a coat.他一定是疯了，花那么多钱买一件外套。

•Some of the things she does are completely mad.她做的一些事情极其愚蠢。

•He's always complaining and it makes me so mad.他没完没了地抱怨，令我十分恼火。

•mainly US Are you still mad at me?你还在生我的气吗？

•mainly UK Kerry got really mad with Richard for not doing the washing up.理查没有洗碗，克丽大发雷霆。

•Bill's untidiness drives me mad.比尔的邋遢真让我受不了。

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•We made a mad dash for the train.我们发疯似的赶火车。

•I was in a mad panic/rush trying to get everything ready.我发疯似的急急忙忙想把一切准备好。

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•He's the first real boyfriend she's had and she's mad about him.他是她第一个真正的男朋友，她很迷恋他。

•He's mad about football.他对足球着迷。

•Everyone's mad for him and I just don't see the attraction.大家都为他倾倒，可我就没看出他哪里有吸引力。

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•This is my advice to wives whose husbands have left them for a younger woman - don't get mad, get even!这是我对丈夫另觅年轻新欢而遭到抛弃的妻子的忠告－－别激动，你就以其人之道还诸其身吧！

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•She's been saving like mad because she wants to buy a car.她想买汽车，所以在拚命存钱。