顶下，高人来救命�

再顶�

三顶

You will only regret how little you have　　learnt when you need to utilize what you have learnt. /
You will not find your books few until you refer to then，
you will not think the matter difficult until you experience it.

谢谢�

So little you had read then you'll know,
So tough you had gone then you'll feel.

then改成when似乎更好

修改楼上的
So little had u read until you knew,
So rough had u felt after you left

对联实在是不好翻译

很多东西一翻译成英语就变感觉了