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
We cannot leave this problem unattended.
这一问题我们不能置之不理。
He wants to work for a while before he returns to college.
他希望返回学校之前暂时工作一段。
Is that all? It seems worse than a cold.
仅此吗？看似比感冒重吧。