时间: 2025-04-26 21:54:21
美: ['lɛvɚ]
英: ['liːvə]
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
最后更新时间:2025-04-26 21:54:21
词源分析:
历史背景:该词最早出现在中世纪英语中,记录于14世纪。它在科学和工程领域的使用逐渐增加,尤其是在物理学和机械学中。
课本:
正式与非正式语境:
引证解释:
特殊场合:
The lever allowed the workers to lift heavy stones with ease.
(这个杠杆让工人们能轻松地抬起重石。)
In negotiations, understanding how to leverage your position can lead to better outcomes.
(在谈判中,理解如何利用你的立场可以带来更好的结果。)
The engineer explained how the lever system works in the new machinery.
(工程师解释了新机器中的杠杆系统是如何工作的。)
Using a lever, you can multiply your strength to move objects much heavier than yourself.
(使用杠杆,你可以把自己的力量放大,以移动比自己重得多的物体。)
She used her connections as a lever to gain access to exclusive events.
(她利用自己的关系作为杠杆,获得参加独家活动的机会。)
同义词:
反义词:
选择音标记忆法:
通过上述的分析与学*方法,可以更好地理解与使用"lever"这个单词。
[N-COUNT] 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. 控制杆
例:Push the tiny lever on the lock and let the door lock itself.推锁上的小控制杆,让门自动锁上。
[N-COUNT] 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. 杠杆
例:He examined the machine, worked a lever that lifted the lid.他检查了机器,并使用杠杆打开盖子。
[V-T] If you lever something in a particular direction, you move it there, especially by using a lot of effort. 撬动
例:Neighbours eventually levered open the door with a crowbar.邻居们最后用一根撬棍撬开了门。