Definition
To have an extremely close relationship, often being together constantly and relying heavily on each other.
形影不離，互相依賴
Ever since they started dating, they've been glued together almost every day, living in each other's pockets.
自從他們開始約會以來，他們幾乎每天都黏在一起，形影不離。
The brothers are always together, going to school and playing together; they practically live in each other's pockets.
這對兄弟總是形影不離，一起上學、一起玩耍，幾乎整天都在一起。
The two colleagues work together almost every moment, you could say they live in each other's pockets.
這兩位同事幾乎每時每刻都在一起工作，可以說他們形影不離。