lever
英 ['liːvə] 美 ['lɛvɚ]
- 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
词态变化
复数: levers;第三人称单数: levers;过去式: levered;现在分词: levering;
中文词源
lever 杠杆
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。
英文词源
- 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.
双语例句
- 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*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