Ynamine
[化] 炔胺
??? 情景例句
You messed up.
你辦砸了。
In college I majored in science.What was your major?
在學(xué)院我主修了自然科學(xué)，你主修了什么？
This price is quite a bit higher than it was last time.
這次的價(jià)格比上次要貴了一些。