(a) be able to be removed 能被去掉
*`Does this knob come off?' `No, it's fixed on permanently.' ｀这个把手能拆下来吗?＇｀不能, 那是固定的.＇
* These stains won't come off, I'm afraid. 我看, 这些污点去不掉.
(b) (infml 口) take place; happen 举行; 发生
*When's the wedding coming off? 婚礼什么时候举行?
* Did your proposed trip to Rome ever come off? 你提出的到罗马旅行, 後来去了吗?
(c) (infml 口) (of a plan, scheme, etc) be successful; have the intended effect or result （指计划、方案等）成功; 达到预期的效果或结果
*Her attempt to break the world record nearly came off. 她想要打破世界纪录, 已接近成功.
* The film doesn't quite come off. 这部电影不很成功.
(d) (infml 口) (followed by an adv 後接副词) fare; get on 进展; 进行
*He always comes off badly in fights. 他在拳击比赛中总是很糟糕.
* Who came off best in the debate? 在辩论中谁最出色? come off (sth)
(a) fall from sth 从某物上掉下
*come off one's bicycle, horse, etc 从自行车、马等上跌下.
(b) become detached or separated from sth 从某物上脱落或分离
*When I tried to lift the jug, the handle came off (in my hand). 我刚一提这个罐, 把儿就掉了（握在我手中）.
* Lipstick often comes off on wine glasses. 口红常能印到酒杯上.
* A button has come off my coat. 我的大衣掉了一颗扣子. come `off it (infml 口) (used in the imperative to tell sb to stop saying things that one thinks or knows are untrue 用于祈使句, 要某人不再说不确之事)
*Come off it! England don't have a chance of winning the match. 别胡扯了! 英格兰没有希望赢得这场比赛. come off sth (of an amount of money) be removed from (a price) （指钱数）从（价钱）中减去
*I've heard that ten pence a gallon is coming off the price of petrol. 我听说汽油价格每加仑要减十便士.