Polymolecularity
多分子性
🗣️ 情景例句
Good. Do you have any back or knee problems?
好。你的背部和膝关节有什么毛病吗
Youth is life's seed-time.
青年时代是人生的播种期。
Excuse me. How can I get to Bear Country?
对不起，到熊国怎么走？