/ɒf; US ɔ:f ||; ɔf/adv prep☞For special uses with many verbs, for example go off, look at the verb entries. off可与许多动词连用，如go off，其用法参看有关动词词条。 1 down or away from a place or a position on sth 从某处落下或离开: to fall off a ladder/motorbike/wall 从梯子╱摩托车╱墙上跌下来We got off the bus. 我们下了公共汽车。I shouted to him but he just walked off. 我向他大叫，但是他走开了。I must be off (= I must leave here). It's getting late. 我得走了，时间不早了。When are you off to Spain? 你什么时候去西班牙呢？ (figurative 比喻) We've got off the subject. 我们离题了。
2 used with verbs that mean ‘remove’ or ‘separate’ （与表示“除去”或“分开”的动词连用）: She took her coat off. 她脱下了外套。He shook the rain off his umbrella. 他抖掉雨伞上的雨水。
3 joined to and leading away from 与…相接；由…延伸开来: My road is off the Cowley Road. 我走的这条路通向考利公路。
4 at some distance from sth 与某物相隔一段距离: The Isle of Wight is just off the south coast of England. 怀特岛离英格兰南海岸不远。Christmas is still a long way off (= it is a long time till then). 离圣诞节仍然有好一段日子。
5 (used about a machine, a light, etc) not connected, working or being used （指机器、电灯等）没有连接，没有开动，关着，停用: Please make sure the TV/light/heating is off. 请确保电视╱电灯╱暖气已经关闭。 [OPP] on 反义词为on
6 not present at work, school, etc 放假；不用上班、上学等的时候: She's off work/off sick with a cold. 她患了感冒，请了病假。I'm having a day off (= a day's holiday) next week. 下星期我休假一天。
7 (used about a plan or arrangement) not going to happen; cancelled ﹙指计划或安排﹚告吹﹔被取消: The meeting/wedding/trip is off. 会议╱婚礼╱行程取消了。 [OPP] on 反义词为on
8 cheaper; less by a certain amount 比较便宜；少花（某金额）: cars with £400 off 便宜400英镑的汽车£400 off the price of a car 一辆汽车减价400英镑
9 not eating or using sth 不吃；不用: The baby's off his food. 那婴儿不想吃东西。
off and on;on and off sometimes; starting and stopping 不时；断断续续地:
It rained on and off all day. 雨断断续续下了一整天。 off limits (
especially US 尤为美) forbidden; not to be entered by sb 禁止入内
off the top of your head→
TOP¹
well/badly off having/not having a lot of money 富裕／穷困的