Polyhalide
多卤化物
🗣️ 情景例句
What's the matter?
发生了什么事？
Better to do well than to say well.
说得好不如做得好。
That's right. On Friday. I'm going there for the holiday with my parents.
是的，星期五（动身）。我打算到那儿和我的父母一起度假。