ㄎㄜˋㄑㄧㄣˊㄎㄜˋㄐㄧㄢˇkèqín‑kèjiǎn

克勤克俭
  1. 勤勞節儉

to be industrious and frugal (idiom)​
fleißig und sparsam (Adj, Sprichw)​