Ethyleneoxy
乙烯氧基
🗣️ 情景例句
I'm sorry, I can't help you. I'm just a tourist also.
很抱歉，我帮不了你，我也只是个游客。
There is no friend so faithful as a good book.
最忠实的朋友莫过于一本好书。
Why?what happened.
为什么？怎么啦？