Diastereoisomeride
非对映异构体
🗣️ 情景例句
Remember Lillian?
还记得Lillian吗
It's a beautiful country with many large lakes.
这个国家很美，它有很多湖泊。
Shrugging my shoulders, I began to walk away when,
我耸耸肩膀掉头走开了。