Diolefin
n. [化]二烯
🗣️ 情景例句
Do you know anyone who can forge a sick note for me?
你知道谁可以帮我虚开一张病假条？
I suppose it's difficult for you to do this.
我推测对你来说做这件事情是很困难的。
I think we are the first people here for hundreds of years. Maybe thousands.
“我认为几百年，可能几千年以来，我们是第一次来这里的人。”