Chemoevolution
化学进化
🗣️ 情景例句
Oh my!
噢 ，我的天！
Close your book,please.
请把书合上。
Yes, that's a good idea. But I have another difficulty. My written English isn't very good either.
是的，这主意不错。但我还有另外一个难题。我的书面英语也不好。