Hexoylene
[化] 2-己炔
🗣️ 情景例句
What do you often do in your spare time?
你在业余时间都干些啥？
It's out of the question.
这是不可能的。
Yes. Ashland is a small town about eight kilometres from the city of Richmond.
对。阿什兰德是一个距里士满市大约8公里的小镇。