Davy's lever
[医] 戴维氏杆(直肠止血杆)
🧩 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
I don't envy him his money problems.
我庆幸自己没有他那些金钱的烦恼。
Learn to walk before you run.
循序渐进。
No, I didn't. I didn't have his telephone number.
不，没有。我没有他的电话号码。