Why don't you come over to England in the summer?

你为何不在夏天来英格兰呢？

Maybe I could come over to your house before the party?

也许我可以在聚会前拜访你？

It's very definitely a usage which has come over to Britain from America.

这肯定是从美国传至英国的一种用法。

It was obvious Hill had come over to keep tabs on Johnson and make sure he didn't do anything drastic.

显然，希尔是来严密监视约翰逊的，以确保他不做什么过激的事。

Come over to our benefactor now.

现在到我们的恩人那儿去吧。