Diethyl maleic acid
[化] 二乙基马来酸
🧩 词语组成解析
a. [化]二乙基的
n. 顺丁烯
🗣️ 情景例句
The bad news hit everyone hard.
恶耗使每个人都受到了沉重打击。
Who has never tasted bitter, knows not what is sweet.
不尝黄连苦，怎知蜂蜜甜。
Come to school in your old clothes tomorrow!
明天上学时请穿旧衣服来！