Heptynedioic acid
[化] 庚炔二酸
🧩 词语组成解析
🗣️ 情景例句
The professor runs a restaurant on the side.
这个教授的副业是开饭馆。
Are you in a hurry?
赶时间吗？
We're going to spend three days in the country.We're going to stay at my mother's for the weekend.
我们打算到乡下去三三，在我母亲家度周末。