shcool of hard knocks艰苦的磨练
school of hard knocks艰苦的磨练;社会生活经验;从经验中得来
Choir of Hard Knocks唱片名
Hard Knocks Season真人秀重击第六季
the school of hard knocks逆境把人锤炼成才;吃苦头的学校;虽然我在社会大学
The University of Hard Knocks重击大学;挫折大学
同义词：adversityhardship