Epimeric
差向异构体的
🗣️ 情景例句
Here I am.
我在这儿！
I hope you get here on time.
我希望你准时到这里。
Drinks can be cooled by placing them on ice rather than adding ice to them.
可以把饮料置于冰块之上来冷却，而不是把冰块加进饮料之中。