Tony and I are good friends.We usually learn a lot()each other.为什么这个空填from?

题目

Tony and I are good friends.We usually learn a lot()each other.为什么这个空填from?

答案

Tony and I are good friends.We usually learn a lot【fom 】each other.
固定搭配：learn ……from sb 意思是：从……学到……
句意是：我和托尼是好朋友,我们经常从彼此身上学到许多东西.