work diligently and conscientiously;be (always) diligent and conscientious;earnest and assiduous;painstakingly ;

I am a guy like who you are, living my live, surfing online at times.
反正我是一老实人, 勤勤恳恳的过日子, 偶尔偷个小懒上网溜溜.
来源:网络文摘精选Be steadfast in work and life, and be diligent in writing and teaching.
踏踏实实做事做人, 勤勤恳恳写书教书.
来源:网络文摘精选My father is the worker, mother is the staff, they work diligently, is commended frequently.
我爸爸是工人, 妈妈是员工, 他们工作勤勤恳恳,经常被表彰.
来源:互联网摘选Xinhua compiles such statistics assiduously to measure the impact of its work.
新华社如此勤勤恳恳地收集数据以测试它的冲击承受能力.
来源:互联网摘选Virginia was still struggling to be a conscientious and dedicated mother.
弗吉尼娅还在尽力成为一位勤勤恳恳、全心奉献的母亲。
来源:《柯林斯高阶英汉双解学习词典》
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