be off
1．go away； leave离开
Mr．Smith has been off to Paris．史密斯先生已经离开去巴黎了。
2．be cancelled被取消
The trip was off because of the bad weather．这次旅行因天气不好而被取消了。
3．stay away from work； finish work下班；完工；休假
She is off work at eight o'clock tonight．他今晚8点钟下班。
4．have gone bad变坏；变质
The meat is off． Don't eat it．肉变质了，不要再吃了。
5． have become loose松开
There's a button off your coar．你的外衣掉了一个扣子。
6． be prevented from eating， etc．戒某种食品
He's been off alcohol since his illness．他自病后就戒酒了。
7． dislike厌恶
I'm off eggs just now；I ate so many last week．我现在厌恶鸡蛋，上周吃得太多了。