Perhalogeno-
[化] 全卤(代)(代替所有C上的氢)
🗣️ 情景例句
Couldn't we wait until I'm famous?
难道不能等到我成名了再说吗
During the two years since I took charge of the department.
在我负责这个部门的两年中。
Let's not waste our time.
咱们别浪费时间了。