道理

在我看来，他是有道理的。

在我看來，他是有道理的。

In my opinion, he is correct.

从来没有见过有谁能仅通过读书就能学会打篮球的，其实学习外语也是一样的道理。

從來沒有見過有誰能僅通過讀書就能學會打籃球的，其實學習外語也是一樣的道理。

I've never met anyone who was able to learn how to play basketball just by reading a book. The same holds true for learning foreign languages as well.

是什么道理？

是什麼道理？

What's the reason?

他說的話有一定的道理。

There is a certain amount of truth in what he's saying.

那是有道理的。

That makes sense.