láo​kǔ​gōng​gāo

to work hard and perform valuable service

Senses

劳苦功高/ 勞苦功高 láo​kǔ​gōng​gāo to work hard and perform valuable service

To have performed great feats through hard work and toil; often used to praise or acknowledge someone's significant contributions.

References

synonym 丰功伟绩/豐功偉績 劳苦功高/勞苦功高