Mutamer
变构物, 旋光异构物
🗣️ 情景例句
It was a gradual process, involving many factors.
这是个渐进的过程，涉及到方方面面。
Five cats and a man were involved in an accident.
五只猫和一个男人被卷入那场意外里面。
CUSTOMS OFFICER: Your passports, please.
请出示们的护照。