My big brother is my best friend forever.

我大哥永远是我的好朋友。

youdao

My heart is broken because my friend Cookie left me forever.

我的朋友曲奇永远地离开了我，我心都碎了。

youdao

My teacher, li Xin, is not only our good teacher, but also our best friend. We all like her and will remember her forever.

我的老师李欣不仅是我们的好老师，还是我们的好朋友，我们都很喜欢她并将永远记得她。

youdao

You, my friend, are my idea of an ideal reader, always have been, always, that is, forever, will be.

NEWYORKER: Letters to an Editor