坚苦卓绝 jiān kǔ zhuó jué

DEFINITIONS

  1. persisting despite trials and tribulations (idiom); conspicuous determination

CHARACTERS

坚 jiān hard, strong, firm; resolute
苦 kǔ bitter; hardship, suffering
卓 zhuó profound, brilliant, lofty
绝 jué to cut, sever, break off, terminate