befriend someone 

与某人交朋友

You learn more about your kids from whom they befriend than anything else.

你从看你孩子和谁做朋友这一点，会比其他任何一方面都能更多地了解你的孩子。

develop a friendship with 

与某人发展一段友谊

He is developing a friendship with his new roommate.

我正和他的新室友建立友谊。

be close with someone

与某人亲近

She’s very close with her colleagues. They have been working together for years.

她和她的同事关系很亲近。他们已经在一起工作好多年了。

form a bond with

与某人建立联系/连接纽带

In order to form a bond with my new colleagues, I always offer assistance.

为了和新同事建立良好联系，我经常提供帮助。

go way back with someone

与某人认识很久了

We go way back, and she's always kept in touch.

我们认识很久了，并且总是保持联系。

hit it off with someone

一见面就很合的来

They ended up in the same case study group and hit it off immediately.

他们最后被分到同一案例学习小组，并且一下就很合得来。

turn to someone

向某人寻求帮助或建议

Eventually she turned to her close friend for help.

最终她向她亲近的朋友寻求帮助

be here/there for someone

通常在某人需要的时候，为他提供帮助和支持

We haven't always been close, but she was there for me when I needed her.

我们并不总是很亲密，但是当我需要她的时候，她总是守候在我身边。