Perhalogenomethane
全卤甲烷
🗣️ 情景例句
John, what are you going to do?
约翰，你要干嘛？
We aren't happy with the present situation.
我们不满足于现状。
Here it is, Mom! That's one thing I haven't forgotten today!
“在这里，妈妈！这是我今天没有忘记的一件事。”