Epoxybutane
氧化丁烯
🗣️ 情景例句
It's a surprise.
会给你一个惊喜。
Won't you be embarrassed to leave the party early?
你提早一点离开宴会也无妨吧？
He has pointed out that the tree is a useful source of income as tour-ists have been coming from all parts of the country to see it.
他指出，由于人们从全国各地纷纷前来参观这棵树，