after dinner,i was searching a classic old song named <自由>by zhang yu in the net.luckly,i found it in baidu site.the first time i heard this song was when i was in my high school,and i have liked it very much at that time till now.whenever i heard this song,i would recall those happy and unforgettable days in high school.that feeling is very sweet.now i wanna recommend this classic old song to all of you.good things should be shared with friends ,right?haha!