Dicarboxyl
联羧基, 乙二酸, 草酸
🗣️ 情景例句
Your ideas are good ones.
你的想法很好。
Do i need a reservation to go by ship?
我坐船去需要预订吗？
I'd like to invite you to dinner before you go. What about Thursday?
我想在你走之前请你吃饭。周四怎么样？