Cyclohexadiene
[建] 环己二烯, 环己间二烯
🗣️ 情景例句
This job is back-breaking work.
这份工作强度很大。
The doctor advised me to get plenty of exercise.
医生建议我多锻练。
He picked up what seemed to be the smallest bottle and discreetly asked the price.
他挑出一个看上去最小的瓶子，谨慎地问了价。