词典释义：
a rigid bar resting on a pivot, used to help move a heavy or firmly fixed load with one end when pressure is applied to the other
杠杆。
a projecting arm or handle that is moved to operate a mechanism
（机械装置的）操作手柄，控制杆，操纵杆
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she pulled a lever at the base of the cage .她拉了一下机器罩壳底座上的一根控制杆。
〈喻〉 （为使某人做某事而向其施加压力时所用的）手段，方法
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rich countries increasingly use foreign aid as a lever to promote political pluralism .富国越来越多地将对外援助用作推进政治多元化的手段。
lift or move with a lever
用杠杆抬起（或移动）
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she levered the lid off the pot with a screwdriver .她用螺丝刀把罐子的盖子撬开。
move (someone or something) with a concerted physical effort
（均衡地用力）移动
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she levered herself up against the pillows .她紧靠着枕头把自己撑起来。
[no obj.]use a lever
用杠杆，用撬杠撬
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the men got hold of the coffin and levered at it with crowbars .那帮人找到那口棺材后用撬棒撬它。
〈喻〉 对…施加压力
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the Inspector made another attempt to lever a concrete fact from them .警长再次施加压力，想从他们嘴里挖出点儿具体事实来。
"Middle English： from Old French
