Caproamide
[机] 己酸酐
🗣️ 情景例句
It's good that you went back.
你回去是对的。
Thank you very much. Here's $10.00. Give me $1.00 back, please.
太谢谢你了。这是10美元，找我1美元就行了。
This model's less expensive than that one.
这种型号比那种要便宜些。