Mechanical lever
[电] 机械闸柄
🧩 词语组成解析
lever
['li:və, 'levə]
n. 杠杆;操作杆;工具;
vt. 用杠杆撬动;
🗣️ 情景例句
Are you sick?
你病了吗？
I'm done.
我不行了。
Lined up against the wall, there were long thin wires attached to metal spheres.
靠墙排列着许多细长的电线，而电线又连着金属球。