Dicarboxyl
联羧基, 乙二酸, 草酸
🗣️ 情景例句
I am looking forward to Christmas.
我盼望着圣诞节的到来。
There used to be a grocery store on the corner.
过去在角落上有一个杂货店。
This is a good example of his poetry.
这是他诗作的一个好例子。