刻苦❶assiduous; hardworking;painstaking
❷simple and frugal;thrifty
生活～lead a simple and frugal life /～锻炼make painstaking efforts to temper oneself/～好学be studious and diligent/～精神spirit of hard work;assiduity/～耐劳assiduous and hard-working/～努力painstaking efforts/～学习study hard/～钻研study assiduously /～钻研业务work hard to become proficient at one’s job |