yī​qín​yī​hè

incorruptible

一琴一鹤 (一琴一鶴) yī​qín​yī​hè
incorruptible
honest and upright, specifically referring to the integrity and simple lifestyle of government officials
traveling light
carrying very little luggage, typically used to describe a government official moving to a new post without excessive personal wealth

Frequency

Written text
0.002 per million

Sources

Definitions
CC-CEDICT
Frequency data
BCC Corpus (BLCU)