少壮不努力，老大徒伤悲用英文怎么说？

A idle youth, a needy age

if someone doesn't work hard when he is young, he will be very sorrow and regret when he is old. 小弟不才，只能很通俗的说，不过大家一定能看懂的,我就是那个上面说的二楼的，我修改的，所以到下面来了，呵呵

i can't say english

一楼的答案就是 二楼的答案是比较通俗的说法其意思也差不多~