Diethyl succinate
[化] 丁二酸二乙酯
🧩 词语组成解析
a. [化]二乙基的
n. [化]琥珀酸盐(或酯)
🗣️ 情景例句
Sorry to keep after you, but could you tell me...
对不起，又打扰你了，你能告诉我…
The sanitary engineer collects garbage.
卫生队员收集垃圾。
A week? As long as that?
一星期？要那么长时间？