Bier's operation
[医] 比尔氏手术(小腿切断术)
🧩 词语组成解析
🗣️ 情景例句
How do I do that?
我该办什么手续呢？
I lack words, with which to express my thanks.
我无法以言语来表达我的感激之情。
The boys felt tired so they put out the fire and crept into their tent.
于是他们扑灭了篝火，钻进了帐篷。