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刻苦勉励， こっくべんれい
1. being arduous, working diligently enduring hardships
刻苦勤勉(艰苦奋斗，勤奋工作，忍受艰辛)
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努める， 勉める， 力める， つとめる
1. to endeavor (to do), to endeavour, to try hard, to work hard, to strive, to make an effort, to exert oneself, to devote oneself, to be committed (to doing)
努力(去做)，尽力，竭力，努力工作，奋斗，努力尝试，全力以赴，全身心投入，致力于(做)