中英成语俚语800对044：不识抬举
不识抬举
Bring a cow to the hall and she will run to the byre.
Give him enough rope and he will hang himself.
eg：To recommend Jack for the job is to bring a cow to the hall and she will run to the byre.
同义词：不堪造就 Of a pig's tail you can never make a good shaft.