IN CARS ETC 汽车等的, [C,U] the machinery in a vehicle such as a car, truck, or bicycle that you use to go comfortably at different speeds

排挡，挡位

His mountain bike had 18 gears.

他的山地自行车有 18 挡。

Andy drove cautiously along in third gear .

安迪挂在三挡小心地行驶。

Does this thing have a reverse gear ?

这玩意儿有倒挡吗？

Any cyclist can climb a difficult hill; you just change gear .

谁都能骑上难爬的山坡，只要换挡就行了。

Don't turn off the engine while you're still in gear .

还挂着挡的时候不要关发动机。

It's a good habit to take the car out of gear while you're at a stoplight.

遇红灯挂空挡的习惯很好。

[C,U] used to talk about the amount of effort and energy that someone is using in a situation

〔某种情形下所花的〕精力，努力:

During this period, Japan's export industries were in top gear (=were as active as they could be) .

在这个时期，日本的出口产业突飞猛进。

The Republican's propaganda machine moved into high gear .

共和党的宣传机器开足了马力。

United stepped up a gear in the second half.

联队在下半场加强了进攻和防守。

change gear [BrE] ; [AmE]

The boss expects us to be able to change gear just like that.

老板希望我们能够像那样该出力时就出力。

EQUIPMENT 设备, [U] a set of equipment or tools you need for a particular activity

〔用于某种活动的〕一套设备（工具）:

He's crazy about photography – he's got all the gear.

他对摄影很着迷 — 所有的器材他都有。

We'll need some camping gear.

我们将需要带些宿营器具。

CLOTHES 衣服, [U] a set of clothes that you wear for a particular occasion or activity

〔为某个场合或活动而穿的成套〕服装:

Bring your rain gear.

带上你的雨具。

police in riot gear

有防暴装备的警察

MACHINERY 机器, [U] a piece of machinery that performs a particular job

〔某种用途的〕机器:

the landing gear of a plane

飞机的起落架

heavy lifting gear

重型起重机

DRUGS 毒品, [U] [BrE informal] a word meaning illegal drugs, used by people who take drugs

毒品

get your ass in gear, [AmE informal] used to tell someone to hurry

赶快;

You'd better get your ass in gear – you're late.

你最好快点，要迟到了。

be geared to sb / sth, to be organized in a way that is suitable for a particular purpose or situation

适合于某人/某事物:

The typical career pattern was geared to men whose wives didn't work.

这种典型的职业模式是为妻子不工作的男性设计的。

The course curriculum is geared to span three years.

这门课程设计为三年学完。