劳苦功高

勞苦功高
láokǔgōnggāo

to have worked hard and made enormous contributions

Wiktionary

Entry Composition

1 劳苦 láokǔ
  1. to toil
  2. hard work
2 功 gōng
  1. meritorious deed or service
  2. achievement
  3. result
  4. service
  5. accomplishment
  6. work (physics)
=3 高 Gāo surname Gao
=3 高 gāo
  1. high
  2. tall
  3. above average
  4. loud
  5. your (honorific)