Valylene
缬烯炔, 2-甲基-1-丁烯-3-炔, 异戊稀炔
🗣️ 情景例句
Which subject were you best interested in?
你对哪一科最有兴趣？
I ran all the way to school, otherwise I'd have been late.
我一路跑到学校，不然就迟到了。
That was a long time ago,wasn't it?
那是好久以前的事了。是吗？