They became friends right away.

他们立刻变成了好朋友。

youdao

They soon became friends.

他们很快成为了朋友。

youdao

The Emperor was impressed by him and they became friends.

皇帝对他印象深刻，他们成了朋友。

youdao

The two became friends. John Henslow suggested that Charles Darwin take the unpaid position of naturalist for a trip on the British ship H.M.S.Beagle.

VOA: special.2009.02.25

So we grew up with each other and became like best friends and

我们一起长大，成了最好的朋友，然后

和朋友一起逛洛杉矶 - SpeakingMax英语口语达人

Branden and his wife Barbara soon became friends with Rand and joined the Collective.

VOA: special.2010.06.06

Whitney and Lawrence, both self-professed math nuts, became friends after their children did in 2008.

FORBES: Names You Need to Know: MoMath

Katie Rager, Penny's longtime friend, says Penny was simmering with anger when they became friends.

CNN: The voting rights martyr who divided America

When flags were hanging from front porches all across America, and strangers became friends.

CNN: Kerry: We are here to make America stronger