友誼天長地久的英文歌詞是："As Time Goes By"。這首歌是由鄧麗君演唱的，歌曲的意境很美，描述了友情長久不變的美好情感。下面是歌曲的英文歌詞：
As time goes by,
Our friendship will last forever.
No matter where we are,
No matter when we meet again,
Our hearts will always be together.
Through the good times and the bad,
We've been there for each other.
Through the laughter and the tears,
Our friendship has never failed.
So let's hold on tight,
To the memories we've made.
And let our friendship shine,
Through the years and forever.
As time goes by,
Our friendship will never die.
It's a gift that's given,
A treasure that's kept safe inside.
So let's celebrate,
This beautiful bond we share.
And let our hearts sing,
A song of friendship forever.