Old friends are lost and new friends appear.

旧朋友失去了，新朋友出现了。

youdao

I've lost touch with all my old friends.

我与所有的老朋友都失去了联系。

《牛津词典》

I spoke to my friends about my lost wallet.

我跟朋友们说了我丢钱包的事。

youdao

Professor Murray says many rural families have taken in relatives and friends who lost homes and jobs.

VOA: special.2010.04.13

Ryan and four of his friends were riding in a car when the driver lost control and hit a tree.

VOA: standard.2010.06.24

The mood this Easter in the Abruzzo region was somber as many prayed for relatives and friends they lost to the quake.

VOA: standard.2009.04.12

However, others carry the experience of their own wartime service or the heartache for friends lost.

CNN: U: War hits home for some, remains remote for others

And I think that the bulk of America has a lot of trouble with that concept, that so many of their friends lost their houses, lost their jobs, and yet some of the firms that they think contributed to the crisis got bailed out.

FORBES

"Our hearts go out to the families and friends who lost loved ones, " Obama said.

CNN: Search for answers begins in Buffalo plane crash