请问drop in on 与drop by有什么区别

请问drop in on 与drop by有什么区别 drop in on 与drop by有什么区别 DROP IN ON drop in on drop in与drop by的区别 -----Do ____me when you come to America next time .-----Sure,I will.A.drop B.drop in C.drop in at D.drop in on tune in,turn on,drop drop in 和drop in on用法有什么不同 drop in on sb./ drop in at a place翻译 请问drop drop-in 和drop out Drop drop drop 关于drop in的用法drop in 有drop in to do sth吗eg:Drop in to see us any time.improper to drop in on him so casually.drop in on sb drop by 怎么用 drop ___us whenever possiblea on in b on with c in on d in for I never expected that he would ____ mo on his way to the airport为什么用drop in on不用drop on ,drop at,drop in 顺道拜访是drop in.还是drop on.drop in on,有这个词组么,drop by,能给造点例句…