a friend of mine= one of my firends æçä¸ä¸ªæåã
a friend of me,=ãyour friend ,me. æè¿ä¸ªæåã
ä»è¯çè¯of meæ¯friend ç
åä½è¯ãå³æå°±æ¯è¿ä¸ªæåã
Bob is a friend of mine.= Bob is one of my friends.
Bob is a friend to me. = Bob is friendly to/ toward me.
Bob is friends with me.= Bob has made friends with me.= Bob is friendly with me.