Alkene
[ ['ælki:n] ]
高中 Senior High
n. [化]烯烃,链烯
🗣️ 情景例句
The boxes of presents.
那些礼物盒。
Football is my favorite.
足球是我最喜欢的。
Armed with a torch, the vicar went up into the clock tower to see what was going on.
牧师拿着一支电筒走上钟楼想去看看究竟发生了什么事情。