Off这个单词有很多词性，在英语中应用广泛。

Off做副词

远离一个地方或位置，尤指现在的地方、位置或时间:

He drove off at the most incredible speed.

Keep the dog on the leash or hell just run off.

Someone ran off with (= took) my pen.

Shes offtoCanada next week.

I saw her off (= said goodbye) at the station.

Finals are sofaroff that Im not even thinking about them yet.

英国用法：Im off now - see you tomorrow.

英国用法：

If we can get off (= leave) early tomorrow morning well avoid most of the traffic.

更多案列：

When we heard shed gotten the job, we all went off for a celebratory drink.The horses set off at a canter.The dog trotted off to bury its bone.Im jetting off to New Zealand next week.The gang drove off, with the police in hot pursuit.

off副词(REMOVED)

用于某物从另一物中移走或将其自身移走的动作

Take your jacket off.

One of my buttons came off.

She had all her hair cut off.

off副词(NOT OPERATING)

尤指机器、电器设备、灯等)因没有接通电源而不能工作:

Make sure the computers are all off before you go home.

Turn/Switchthe light/engine/television off.

off副词(LESS MONEY)

(指钱)原价减去的

You can get some money off if you pay cash.

Theres 40 percent off this week on all winter coats.

There was $40 or $50 off most jackets in the store.

off副词(NOT AT WORK)

不是在工作;在家或度假：

Im going totake/havesome time off to work on my house.

She was offsicklast week.

Hes off at the moment - can I get him to call you back?

off副词(SEPARATED)

in such a way as to be separated:

The police haveshut/closedoff all streets leading to the city.

The area in the park where the kids play is fenced off for safety reasons.

off副词(COMPLETELY)

以完全不存在的方式，尤指由于已被使用或杀死。

It says on the bottle that itkillsoff all known germs.

Itll take some time before she manages topayoff all her debts.

The good thing about exercise is that it burns off calories.

Between us we managed tofinishoff several bottles of wine.

off副词(GET RID OF)

以这样的方式摆脱某物:

We went out for a while towalkoff some of our dinner.

Hes gone tosleepoff a headache.

Theres no point in getting upset about what he said - you just have to laugh it off.

off副词(IN COMPETITION)

用于构成名词，指两个或两个以上的人或团队互相竞争看谁是赢家的情况:

Send your entries into the Biscuit Bake Off before March 23.

Audience applause determines the winner of eachdance-off.

Off作为介词

off 介词(AWAY FROM)

降低或远离一个地方、位置或时间，尤指现在的地方、位置或时间

There was a "Keep off the grass" sign.

All the berries had dropped off the tree.

He fell off his bike.

Were still a long way off our target of $30,000.

I hope she knows where to get off (= leave) the bus/train.

How far off finishing the project are we? (= How much more is there to do?)

off 介词 (REMOVED)

用于某物从另一物中移除或将其自身移除的动作:

I cant get the lid off this jar.

Has anyone taken a book off my desk?

Could you cut me a small piece off that big white cheese?

Take your feet off that seat, young man!

I dont like taking money off you (= asking you for money)!

Get off me! (= Stop touching me!)

off 介词 (NOT LIKING)

不喜欢或不接受某物或某人:

Hes been off his food ever since he had the stomach upset.

Shes well enough to be off the medicine now.

Shes been off drugs for a year now.

I used to love coffee but Ivegoneoff it (= stopped liking it) recently.

off 介词(NEAR TO)

靠近

He livesjustoff the main road.

Its an island off the east coast of Spain.

Off做形容词

off 形容词 (STOPPED)

（关于安排好的事件）停止或放弃:

The weddings off - shes decided shes too young to settle down.

Its all off (= the relationship is over) between Kim and Mike.

off 形容词 (PROVIDED FOR)

有一定数量的，尤指钱的:

Andrew must be sowell-off (= rich) by now.

I think theyre fairlybadly-off (= poor) now that David has lost his job.

Im quitewellofffor(= have a lot of) sweaters.

off 形容词 (BELOW USUAL LEVEL)

低于通常的标准或价格

Im having an offdaytoday - I just cant seem to do anything right!

off 形容词 (BAD)

(指食物和饮料)因时间太长而不再新鲜或不宜吃或喝:

This milk smells off.

Id better eat this cheese before itgoesoff.

off 形容词 (NO LONGER SERVED)

(指餐馆的食物)在那个特定的时间没有供应的:

Im sorry, sir, the salmon is off.

off 形容词(RUDE)

不考虑或担心他人感受的;粗鲁的：

He didnt even call her on her birthday - I thought that wasa bitoff.

Off作为名词

离开某地:

Are weready forthe off, then?

Off作为动词

杀了某人to kill someone:

They offed him and dumped his body in the swamp.