Cinnamaldeyhde
[機] 肉桂醛
??? 情景例句
What material is this made from?
這是什么材料做的？
If you concentrate all your energies on the study of English, you will master the language.
你若全力以赴地學習英語，你會掌握這門語言的。
How many players are there in a team?
一個隊里有多少名隊員？