le
ver
复数形式
levers
1
杠杆, 撬棍
a long rigid bar that is put under a heavy object in order to move it
- He used a lever to lift the heavy rock from the ground.
他用了一根杠杆把沉重的石头从地上撬起来。
- The mechanic employed a lever to change the flat tire.
机械师用杠杆更换了漏气的轮胎。
- She used a wooden lever to move the heavy crate across the floor.
她用一个木制杠杆在地板上移动沉重的板条箱。
- A lever makes it easier to lift heavy objects with less effort.
杠杆使得用更少的力气举起重物变得更容易。
- With the help of a lever, they managed to pry open the stuck door.
借助杠杆，他们设法撬开了卡住的门。
2
杠杆
a handle on a piece of equipment or machine that is used to make it operate
3