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 going to attend graduate school?
你想读研吗？
How much flour did you want to use?
你要用多少面粉？
With experience, and with improved apparatus,
根据经验和改进了的仪器，