Daily Chinese Idiom Guessing Game
To unite seamlessly or to mix together harmoniously, often used to describe getting along well with others or blending into a group.
原指形成一个整体。现多形容感情融洽，成为一体。
宋·释普济《五灯会元》卷十五老僧四十年方打成一片。”
The new manager quickly made an effort to integrate with the team and soon everyone was working together as one.