Perhalogeno-
[化] 全卤(代)(代替所有C上的氢)
🗣️ 情景例句
Maybe you could come over next time. Good luck.
那也许下回你们可以来。祝你好运！
If he doesn't pay, who will?
如果他不，谁要付账？
How do you do?
您好！