问题根源英语

We attach great importance to this and avoid the similar case, we have to find the root cause.

这是问题产生的根源：This is the root of the problem。

This is the source of the problem.

The fundamental cause of the problem lies in....

Basically, no problem. His ability to learn the root of the problem is he has no interest in language learning.

The main cause of this problem is that ...