成百上千英语怎么说？

百上千英语可以译为 "hundreds or thousands"。来源于中文，源于对数量的修饰。

例句：

I have hundreds or thousands of books in my library. (我的图书馆里有成百上千本书。)

There are hundreds or thousands of people at the concert. (演唱会上有成百上千人。)

We have received hundreds or thousands of applications for the job. (我们已经收到了成百上千份工作申请。)