lever

• n. 杠杆；控制杆
• vt. 用杠杆撬动；把…作为杠杆
• vi. 用杠杆撬
• n. (Lever)人名；(法)勒韦；(英)利弗；(德)莱韦尔

来自拉丁语levare,升起，举起，来自PIE*legwh,轻的，可举起的，词源同light,levitate.引申词义杠杆。

lever (n.)

c. 1300, from Old French levier (Modern French leveur) "a lifter, a lever," agent noun from lever "to raise," from Latin levare "to raise," from levis "light" in weight, from PIE root *legwh- "light, having little weight; easy, agile, nimble" (cognates: Sanskrit laghuh "quick, small;" Greek elakhys "small," elaphros "light;" Old Church Slavonic liguku, Lithuanian lengvas "light;" Old Irish laigiu "smaller, worse;" Gothic leihts, Old English leoht "light" (adj.)). As a verb, 1856, from the noun.

1. An elevator mechanic can work the machinery directly by turning this lever.

电梯修理工可以转动这根杠杆直接操作机器。

来自柯林斯例句

2. Press the lever until you hear the catch engage.

压下挡杆，直到听到挡挂好。

来自柯林斯例句

3. I put the coin in the machine and pulled the lever.

我把硬币投入机器，拉动控制杆。

来自柯林斯例句

4. He pushed a lever that speeded up the car.

他挂挡加快了速度。

来自柯林斯例句

5. Push the tiny lever on the lock.

按一下锁上的小柄。

来自柯林斯例句