n. a rigid bar pivoted about a fulcrum
n. a simple machine that gives a mechanical advantage when given a fulcrum
n. a flat metal tumbler in a lever lock
n. 杠杆, 似杠杆之工具
vt. 撬开
vi. 使用杠杆
1. You can use a lever to lift heavy objects more easily.
你可以使用杠杆更轻松地抬起重物。
2. The mechanic adjusted the lever to fix the machine.
机械师调整了杠杆以修理机器。
3. He pulled the lever to start the engine.
他拉动杠杆以启动引擎。