To Chinese overseas students,algebra or any course is not a real challenge,but using English anywhere and anytime.

问题描述:

To Chinese overseas students,algebra or any course is not a real challenge,but using English anywhere and anytime.
but 的后面为什么是 using
not…but…怎么用的?

这个句子but后面接的不是一个句子,not前面是is,也就是说not...but做的是一个宾语,这里not后面是名词,所以but后面也不会跟句子的