drop by，drop on和drop in三个词组的用法各是怎样

drop by和 drop in都表示”顺便拜访“区别在于drop in后面可以跟on、at加宾语，而drop by一般不这么使用。如：Would you drop by when you are in town?你来城里就来玩好吗?另外，drop in含有临时生出主意造访的意思，造访未经事先安排。

看一下它们的造句。

1. drop in的例子：Drop in to see us any time.随便什么时候顺便来看看我们.I' d like to drop in and see you sometime next week.我想在下周什么时候顺便来看看你.It's improper to drop in on him so casually.这样冒冒失失去找他可不好.

2. drop by的例子：I have to drop by the bank to get some money.我得到银行去取一下钱Would you drop by when you are in town?你来城里就来玩好吗?I'll drop by later to check on you.等一下我会顺道去看看你.
   
   

drop by/in/round; drop in (on sb)
偶然访问（某人或某地）; 顺便访问
I just dropped by to see how you were getting on.
Why don't you drop in for a drink one evening?
Drop round some time. 有空就顺便来坐坐.
I thought I'd drop in on you while I was passing. 我曾想路过时就来看看你.
没有drop on