Polyhalogenation
多卤化反应
🗣️ 情景例句
It's kind of you to say that.
非常感激你那么说。
Work bears witness who does well.
工作能证明谁人做得好。
I had forgotten all about the snails when Robert suddenly said that I must stay to dinner.
我把蜗牛的事已忘得一干二净，罗伯特突然提出一定要我留下来吃晚饭，这才提醒了我。