单词
lever
读音
ˈlevər
美式
英式
词根
无
释义
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
例句
He pulled the lever and set the machine in motion.
他扳动操纵杆，启动了机器。
I put the coin in the machine and pulled the lever.
我把硬币投进机器，然后拉了控制杆。
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。
He pulled the lever and set the machine in motion.
他扳动操纵杆，启动了机器。
I put the coin in the machine and pulled the lever.
我把硬币投进机器，然后拉了控制杆。
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。
强化记忆
无
看视频学发音
But good news, again.Lever number two:humanity actually solved the problem of agricultural poverty a century ago.
And that's because we tend to think of skeletonsas stiff lever systemsthat produce speed or power.
It's not a good idea, but it's just important. (Laughter)I'll tell you how big the lever is: the lever is that big.And that calculation isn't much in dispute.
is not by using moneyor power to lever a system,but by leading.
and if they grab near the end of the lever,they can get an effectively long leverand produce a lot of torque as they push back and forth,
所属分类
大学,出国,其他
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