created sense approved 烂泥扶不上墙/爛泥扶不上牆 · lànnífúbùshàngqiáng · useless
烂泥扶不上墙 / 爛泥扶不上牆
lànnífúbùshàngqiáng
useless
hopeless and incapable of being improved or helped, especially regarding someone who lacks ambition or talent despite support
他这种人真是烂泥扶不上墙,教了多少遍都还是不长进。