孺子牛

rúzǐniú ㄖㄨˊ ㄗˇ ㄋㄧㄡˊ

    • person who gladly serves the people with total devotion

Character by character

Saying俗语俗語

Idiom惯用语 · Widely known

Literally
the child's ox
Meaning
A person who gladly serves the people with total devotion. Approving; from the story of Duke Jing of Qi playing ox for his young son.

Sources