dào​liú

to flow backwards

倒流 dào​liú
to flow backwards verb
(of liquids) to flow from a lower to a higher level; to flow against the current

The Chicago River is the only river in the world that flows backward.

to flow in reverse verb
to move in a direction opposite to the normal or intended progression, as with time or social trends
to return
to return to a place of origin, such as people returning to a town from the countryside or professionals returning to an industry

Frequency

Movie subtitles
1.97 per million appears in 1% of films
Written text
2.18 per million

Sources