Bivinyl
n. [化]丁(间)二烯,联乙烯
🔁 扩展释义
【化】 1,3-丁二烯
🗣️ 情景例句
Hey, go to the doctor. That cough sounds bad.
嘿，去看看医生吧，听起来你咳嗽得挺厉害的。
Happy is he who knows his follies in his youth.
记得青年时所做的愚笨事的人是幸福的。
why have we had no visitors from outer space yet?
那么我们为什么还未见到外层空间来访的客人呢？