Dicarboxyl
联羧基, 乙二酸, 草酸
🗣️ 情景例句
I've invited you here for the weekend to help celebrate.
我邀请你们到这儿来渡周末， 一起庆祝。
Do you ever learn Chinese during the holidays?
你曾经在假日期间学中文吗？
We've still got lots of them over there.
那边还有很多呢。