Clathrate
[化] 包合物
🗣️ 情景例句
Terrific!
了不起！
It's a good thing you reminded me to take my heavy coat.
谢谢你提醒我拿我的厚衣。
A short while ago, my sister helped me to carry one of my old bookcases up the stairs.
几分钟前，我妹妹帮我把一个旧书橱抬上了楼。