不懈努力 bù xiè nǔ lì

DEFINITIONS

  1. unceasing effort; persistent and continuous hard work without giving up, striving to achieve a goal

CHARACTERS

不 bù no, not; un-; negative prefix
懈 xiè idle, relaxed, remiss
努 nǔ to exert, strive, make an effort; to pout
力 lì power, capability, influence