记得一首歌里面有这样的歌词

我想你可能说的是这个吧

<blowing in the wind>

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 peop