Dipentene
二戊烯
🗣️ 情景例句
I'm a big movie fan.
我是个电影迷。
If it doesn't rain tomorrow,I think I'll go shopping.
如果明天不下雨，我将去购物。
They were also quite sure that a cigarette end did not start the fire.
他们还十分肯定火灾也不是由烟头引起的。