Epoxyethane
环氧乙烷
🗣️ 情景例句
No. Pete wants to tell you ...
不是。Pete要告诉你们……
Do you have any idea on this subject?
对于这个题目你有什么看法？
Just as Mrs.Richards was entering the dinning room, there was a knock on the front door.
理查兹夫人刚刚走进餐厅，前门就传来敲门声。