Thraclene
(=6-methyl hepten-5-yl-acetate)乙酸-6-甲基庚烯-5-酯
??? 情景例句
He has to drive for twenty minutes to get from his house to his office.
從他的家到他的辦公室有20分鐘的車程。
My brother took a trip to Mexico.
我的兄弟到墨西哥旅行了。
It's not like her to have missed two days of classes.
缺課兩天不太象她的作風(fēng)。