Hexoylene
[化] 2-己炔
🗣️ 情景例句
She's worked two jobs for years.
几年来他一直同时做两个工作。
I'm glad to, but I'm afraid I don't have the time.
我很乐意，但我恐怕没时间。
Economy is one powerful motive for camping, since after the initial outlay upon equipment,
图省钱是露营的一个主要动机，因为除了开始时购置或是租借一套露营装备外，