Hexoylene
[化] 2-己炔
🗣️ 情景例句
I was. I came back here last month on vacation.
本来是，不过上个月回来度假。
Can anybody scratch my back for me?
有人来替我搔背吗？
Uncle Wang, may I ask you some questions, please?
王大叔，我可以问你一些问题吗？