bù​fēn​bǐ​cǐ

intimate

不分彼此 bù​fēn​bǐ​cǐ
intimate expression
to be on very close terms, treating each other with the familiarity of a single unit or family
share everything expression
to make no distinction between what belongs to oneself and what belongs to others; to share possessions or responsibilities freely

Frequency

Written text
0.218 per million

Sources

Definitions
CC-CEDICT
Frequency data
BCC Corpus (BLCU)