it is the most patient and cheerful of companions中的of是不是不合语法

题目

it is the most patient and cheerful of companions中的of是不是不合语法

答案

companions打错了
应该是It is the most patient and cheerful of companions.意为书是人类所有伴侣中最有耐心、最令人愉快的伴侣.在of前省略了companion.
如果改为It is the most patient and cheerful companion.意思基本不变,但强调的意味没有原句那么强.