Regioselectivity
[化] 区域专一性; 区域选择性
🗣️ 情景例句
I'm sure you can, Ellen.
说的没错， Ellen。
Drop me a line.
写封信给我
It's just the matter of the schedule,that is,if it is convenient of you right now.
如果你们感到方便的话，我想现在讨论一下日程安排的问题。