Phasotropy
氨基氢振动异构
🗣️ 情景例句
We're on the fifth floor.
我们在五楼。
Delivery costs will have to be borne by the manufacturer, I'm afraid.
运费恐怕要由制造厂商来承担。
The line's busy. I'll try again later.
电话占线，过一会我再打。