Perhalogenomethane
全卤甲烷
🗣️ 情景例句
I couldn't help laughing.
我忍不住笑出来。
It's only a suggestion, you don't have to take it.
这只是一个建议，你可以不听。
I'm sorry, I don't know. You'd better ask that policeman.
对不起，我不知道。你最好问问那位警察。