Monocarboxylic
a. [化]一元羧的
🗣️ 情景例句
Thanks. Nice to meet you ... again.
谢谢。很高兴又……见到你。
Hang up my coat in the closet ,will you please?
在洗手间挂起我的大衣,好吗？
Many young girls dream of being a fashion model.
许多年轻女孩梦想成为时装模特儿。