Epimerism
差向异构
🗣️ 情景例句
Do you have any assurance for its quality?
你们有任何品质保证吗？
Here, have some coffee on me.
来，我请你喝咖啡。
But the competition of man against man is not the simple process envisioned in biology.
但是，人与人的竞争并不像生物学中想像的那样是一个简单过程。