Specializes
v. 专门从事, 专攻( specialize的第三人称单数 )
🗣️ 情景例句
Both are equally effective.
两者都有效。
Happy is he that is happy in his children.
对自己孩子感到高兴的，才是幸福的人。
He started to complain about this wicked world but was interrupted by a knock at the door.
他开始抱怨起这个邪恶的世道来，却被一阵敲门声打断了。