兢兢业业

兢兢业业 [jīng jīng yè yè]

1. ■ be conscientious and do one's best; assiduous; be attentive (to one's business); be careful and conscientious; be conscientious and earnest; cautious and attentive; constantly on one's guard; do things in a careful manner; extremely watchful:

兢兢业业地为国家和人民工作一辈子 work conscientiously for the nation and the people all one's life;

兢兢业业工作的典型 prime example of the work ethic