专程拜访某人 用英语怎么说？

call on sb.

call on
拜访
I'll call on him tomorrow.
明天我去拜访他。

drop可用于表达“顺便走访”
Drop over to our house for a visit sometime.
有功夫请到我们家来玩。

drop on sb

比如..I dropped my girlfriend's mother yesterday.
意思是 我专程拜访了我女朋友的母亲

come over to sb
drop by sb
visit sb

come all the way 专程 come all the way to visit sb...
eg: We have come all the way to visit you...

take the way to visit somebody