两个句子的区别

问题描述:

两个句子的区别
He is a friend of my brother.
He is a friend of my brother's.

He is a friend of my brother."他是我兄弟的朋友.(强调他对我兄弟的友好)"
He is a friend of my brother's.“他是我兄弟的一个朋友.(强调我兄弟的朋友不止一个)”