ㄅㄨˋㄐㄩㄢˋjuàn

  1. 勤勉不知疲倦三國志···》:長史優游潛心典籍孜孜不倦。」·》:直到到任便勤政愛民孜孜不倦。」孳孳不倦」。勤學不輟孳孳不息無心進取

lit. diligent and never slacking (idiom)​; continuous concentrated effort, assiduous (in study)​, to concentrate
inlassablement, assidûment
emsig (Adj)​