lever是什么意思？

lever

英[ˈliːvə(r)] 美[ˈlevər]

复数：levers;

第三人称单数：levers;

过去式：levered;

现在分词：levering;

例句

同义词

英语六级真题

Students in university towns may also have access to another lever for involvement in accelerated math: math circles.
出自-2017年6月阅读原文
If the light flashed on and off several times, the dolphins were supposed to press the left-hand lever followed by the right-hand one.
出自-2012年6月听力原文
The levers and light were set up in exactly the same way except that this time it was only Doris who could see the light indicating which lever to press first
出自-2012年6月听力原文
Press the right-hand lever first.
出自-2012年6月听力原文
The lever was beyond the dolphins' reach
出自-2012年6月听力原文
Well, first of all, he kept the two dolphins together in the same tank and taught them to press levers whenever they saw a light.
出自-2012年6月听力原文
The levers were fitted to the side of the tank next to each other
出自-2012年6月听力原文
If the light was kept steady, the dolphins were supposed to press the levers in reverse order.
出自-2012年6月听力原文
But in order to get their fish, both dolphins had to press the levers in the correct order.
出自-2012年6月听力原文

柯林斯高阶英汉双解学习词典释义

N-COUNT

（操作机械的）杆，柄，把手

A lever is a handle or bar that is attached to a piece of machinery and which you push or pull in order to operate the machinery.
例句
Push the tiny lever on the lock... 按一下锁上的小柄。 The taps have a lever to control the mix of hot and cold water. 水阀上有一个手柄控制冷热水。
N-COUNT

杠杆；撬棒

A lever is a long bar, one end of which is placed under a heavy object so that when you press down on the other end you can move the object.
VERB

撬动；撬起；用力移动

If you lever something in a particular direction, you move it there, especially by using a lot of effort.
例句
Neighbours eventually levered open the door with a crowbar... 邻居们最终用一根铁撬把门撬开了。 Insert the fork about 6in. from the root and simultaneously lever it backwards... 将耙子插入到离根部约6英寸的地方并同时向后扳。
N-COUNT

（用作施加压力等的）手段，方法

A lever is an idea or action that you can use to make people do what you want them to do, rather than what they want to do.
例句
Radical, militant factions want to continue using the hostages as a lever to gain concessions from the west. 激进的好战派想要继续利用人质作筹码来换取西方的让步。

英汉词典释义

英英词典释义

Noun
1. a rigid bar pivoted about a fulcrum
2. a simple machine that gives a mechanical advantage when given a fulcrum
3. a flat metal tumbler in a lever lock
Verb
1. to move or force, especially in an effort to get something open;
"The burglar jimmied the lock", "Raccoons managed to pry the lid off the garbage pail"

行业词典

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