bèi​hòu HSK3

behind sb's back

背后 (背後) bèi​hòu
behind sb's back directional
acting secretly or speaking about someone without their knowledge

It is impolite to gossip about others behind their backs.

behind directional
at the back or in the rear of a physical object or person

A letter is hidden behind the bookshelf.

Frequency

Movie subtitles
34.3 per million appears in 14% of films
Written text
49.4 per million

Details

HSK 3.0
Level 3

Sources

Definitions
CC-CEDICT