Regioselectivity
[化] 区域专一性; 区域选择性
🗣️ 情景例句
Well, there must be something.
嗯 ，一定可以找到事做。
Joy often comes after sorrow, like morning after night.
暮去必将朝至，苦尽常会甜来。
In the young there is a justification for this feeling.
青年人有这种感觉是情有可原的。