Polychlorization
[化] 多氯化反应
🗣️ 情景例句
Are you here on business or for pleasure?
你来这儿是出差还是游玩？
If I had known that, I could have helped you.
假如我早知道，我就能帮你了。
When is the most convenient time for you?
你什么时候最方便？