Melonal
甜瓜醛 2, 6-二甲基庚烯-5-醛
??? 情景例句
He won't come until next week.
他下星期才會來。
I still want to travel through Europe and to Asia.
我一直希望能從歐洲經由亞洲旅行。
It is, in fact, a primitive type of calendar.
事實上是一種最原始的日歷。