nation表示的是國家；民族，比如中國就是nation。而nationality的意思是國籍，比如說“你擁有中國國籍” 就是 You have a Chinese nationality.

nation例句：

The economy of this nation is rising. 這個國家的經(jīng)濟正在崛起。

It was a story that touched the nation's heart. 這是一個感動了全民族的故事。

nationality例句：

He has Chinese Nationality. 他有中國國籍。

We were both of the same nationality. 我們倆是同一國籍的人。