We have to say goodbye, but our friendship will last forever.

我们不得不说再见，但我们的友谊天长地久。

youdao

I agree to let you do it not because of the apple but our friendship.

我是因为我们的交情才答应你的，可不是为了苹果唷。

youdao

Friends will come and friends will go. But our friendship stays strong and true.

朋友会来，会离开，但是我们的友谊永远纯洁坚固。

youdao

Friendships can be shaken, but our friendship is unshakeable.

BBC: In full: Brown's speech to Congress

We should be solid but not slavish in our friendship with America.

FORBES: Fact and Comment

But I believe in our friendship, because if we are faced with challenges, I know that we will overcome them and even come out stronger.

WHITEHOUSE: President Obama Toasts President Lee Myung-Bak of the Republic of Korea | The White House