电影高手进，这个问题很难

blowing in the wind
歌手：Bob Dylan

How many roads must a man walk down
Before they call him a man
How many seas must a white dove sail
Before she sleeps in the sand
How many times must the cannon balls fly
Before they're forever banned
The answer, my friend, is blowing in the wind
The answer is blowing in the wind

How many years must a mountain exist
Before it is washed to the sea
How many years can some people exist
Before they're allowed to be free
How many times can a man turn his head
And pretend that he just doesn't see
The answer, my friend, is blowing in the wind
The answer is blowing in the wind

How many times must a man look up
Before he can see the sky
How many ears must one man have
Before he can hear people cry
How many deaths will it take
'Till he knows that too many people have died
The answer, my friend, is blowing in the wind
The answer is blowing in the wind
打勾吧,呵呵.

这个不是电影高手能回答出来的
而是音乐高手

鲍勃迪伦的歌，很有名的，好象是ROCK IN THE WIND,记不清除了