Dimethylmethane
n. [化]二甲基甲烷,丙烷
🗣️ 情景例句
How soon will my mail be received by the other end?
我的信件多快能被对方收到？
Which one is yours?
哪一个是你的？
Visitors have been asked to keep the woods clean and tidy.
游客已被告知要保持树林的整洁。