Dibutene
二丁烯, 聚二丁烯
🔁 扩展释义
【化】 二聚丁烯
🗣️ 情景例句
At 4, but I have to leave by 3:00 to get there on time.
四点，不过我三点必须离开，才能准时到那里。
Why are you laughing at me?
你为什么嘲笑我？
He was feeling very tired.
他感到很累。