gear for sth
gear 表示“装备、用具”时通常不可数，常用 gear for sth 说明用途。
We bought warm gear for the winter climb.
我们买了冬季登山用的保暖装备。
挡；挡位；排挡；装备；用具；器材；传动装置；传动机构；衣服；衣物；装备或用具,尤指运动用品
a toothed wheel that meshes with another toothed wheel in order to change the speed or direction of movement
装备或用具,尤指运动用品
Equipment or paraphernalia, especially that used for an athletic endeavor.
一种齿轮,通过啮合另一个齿轮来改变传动运动的速度或方向
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
服装；衣物
Clothing; garments.
由一组相连的旋转齿轮组成的传动装置,用于传递力或改变运动或扭矩
wheelwork consisting of a connected set of rotating gears by which force is transmitted or motion or torque is changed
齿轮:外圆周刻有齿的轮、轮段或杆,可相互啮合传递运动
A wheel, wheel segment, or bar with grooves (teeth) engraved on the outer circumference, such that two such devices can interlock and convey motion from one to the other.
用于特定目的的传动机制(如车辆的转向装置)
a mechanism for transmitting motion for some specific purpose (as the steering gear of a vehicle)
特定齿轮组合或选择,通常通过换挡器实现
A particular combination or choice of interlocking gears, such that a particular gear ratio is achieved; often selected via a shifter.
I packed my camping gear into the car before we left.
出发前我把露营装备装进了车里。
用法提示：gear 是名词，指户外活动所需的装备或器材。
She bought some new gear for her tennis lessons.
她为网球课买了一些新装备。
用法提示：gear 作名词，表示某项运动用的装备。
Make sure you bring all your safety gear when you go rock climbing.
去攀岩时，一定要带上所有安全装备。
用法提示：gear 在此为名词，意为安全装备或防护用具。
gear 表示“装备、用具”时通常不可数，常用 gear for sth 说明用途。
We bought warm gear for the winter climb.
我们买了冬季登山用的保暖装备。
in gear 指挡位已挂上、传动装置啮合；反义为 out of gear 或 in neutral（空挡）。
Leave the car in gear when you park on a hill.
在坡道上停车时，让车挂着挡。
gear 指“齿轮”时为可数名词，一组齿轮说 a set of gears。
A set of gears inside the motor changes the speed of the wheels.
电机内的一组齿轮改变车轮的转速。
grammar · medium
易错句子I need to buy a new gear for camping.
正确表达I need to buy some new gear for camping.
表示“装备、用具”时，gear 是不可数名词，不能像可数名词那样用 a/an 修饰；要用 some 或直接说 new gear。改后用 some new gear 符合不可数用法，意思不变。
grammar · medium
易错句子He packed all his gears for the trip.
正确表达He packed all his gear for the trip.
gear 表示“装备”时没有复数形式，不能加 -s；gears 通常指多个齿轮或车辆挡位。改后用单数 gear 正确表达“所有装备”。
grammar · medium
易错句子She drove up the hill in the first gear.
正确表达She drove up the hill in first gear.
表示车辆挡位时，first gear 是固定说法，前面不加冠词；in first gear 意为“挂一挡”。加了 the 会被理解成某个具体的齿轮零件，不符合此处挡位的意思。
运动装备
He packed his sports gear into the car.
他把运动装备装进了车里。
露营装备
We bought new camping gear for the trip.
我们为这次旅行买了新的露营装备。
防护装备
Workers must wear protective gear on site.
工人在现场必须穿戴防护装备。
最高挡；高速挡
The engine is noisy in top gear.
发动机在最高挡时噪音很大。
倒挡
She put the car into reverse gear.
她把车挂上了倒挡。
换挡杆；变速杆
Choose the next layer that will help you use gear with more confidence.
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He moved the gear shift into first.
他把变速杆推到一挡。