fit in “合群，被他人接受，相处融洽”
英语解释为if someone fits in, they are accepted by the other people in a group。
Maybe he would fit in better if he was more like the other boys.
I'm an ice dancer. All my friends are gay. I was trying to fit in.
相处得好 get along well
(1) get along “相处融洽”
英语解释为if two or more people get along, they have a friendly relationship。
(2) get along well “相处得好”
(3) get along with sb. “与……相处得好”
Denise can get along with everyone.
They seem to get along with each other.
(1) congenial [k?n?d?i?ni?l] “意气相投的，合得来的”
(2) a congenial friend “意气相投的朋友，合得来的朋友”
In today's society everyone needs some congenial friends.
Julia met few people congenial to her in the company.