恪尽职守 kè jǐn zhí shǒu

DEFINITIONS

  1. to fulfill one's duty conscientiously

See also: kè jìn zhí shǒu

CHARACTERS

恪 kè respectful, reverent
尽 jǐn
HSK 4
exhaust, use up; deplete
职 zhí
HSK 4
duty, profession; office, post
守 shǒu
HSK 5
defend, protect, guard, conserve