Codivilla's operation
[医] 科迪维拉氏手术(一种假关节的手术)
🧩 词语组成解析
🗣️ 情景例句
I was very sad indeed to hear about it.
听了这件事，我的确非常难过。
To fall down
掉下
He believed that everyone should be prepared to do heavy work, from the leaders to the poorest peasants.
他认为从领袖到最穷苦的农民，每个人都该乐于从事重体力劳动。