那时，我们之间是一种真正的友谊；我们争论世界上发生的事，都是些有深度而又严肃的话题。

It was a real friendship. We would have debates about how the world works - in-depth talks about serious issues.

youdao

我们争论世界上发生的事，都是些有深度而又严肃的话题。

We would have debates about how the world works - in-depth talks about serious issues.

youdao