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
Why were you out of work for so long?
你为何这么久没有工作？
It's not four o'clock.
还没到四点呢。
But my sister bought this pair last month.
但是，我姐姐上个月买到了这样的一双。