Diolefin
n. [化]二烯
🗣️ 情景例句
study for my math final.
温习数学 准备期末考试。
Is there any way you could bring it in to be looked at?
你有没有办法把它带过来，让我们看一看？
They say it's going to be wet and windy.
据说是要刮风下雨。