Definition
to form a friendship with someone
與…变得友好
At the new school, I was glad to fall in with some students who share similar interests.
在新的學校，我很高興與一些興趣相投的學生建立了友誼。
They always met at the café, and gradually fell in with each other.
他們總是在咖啡館見面，逐漸與彼此建立了友誼。
In just a few weeks, she fell in with the other members of the team.
在短短幾週內，她與團隊的其他成員建立了友誼。