艰难: difficult; hard; arduous地: the earth读: read aloud完: intact; whole刻苦钻研: study assiduously刻苦钻研者: lucubrator刻苦钻研某科: to dig at a subject刻苦钻研一难题: hammer away at a difficult problem他刻苦钻研的精神值得效法: his spirit of assiduous study is worthy of emulation艰难地: difficultly困难地, 艰难地: with difficulty艰难地前进: labour along艰难地行走: stodge艰难地咽下: choke sth. down艰难地走: the farmer trudged吃力地读完一份长报告: wade through a long report从头看到底, 一页不漏地读完: read from cover to cover艰难地学到某事: learn sth. the hard way在艰难地寻找它: have a hard time finding it我习惯了艰难地寻找: i used to be so hard to find读完: read through钻研: study intensively; dig into 钻研业务 gain professional proficiency; 努力钻研技术 endeavour to perfect one's skill刻苦: 1.(很能吃苦) assiduous; hardworking; painstaking 她虽然不很聪明, 但很刻苦。 she is not very clever but she is painstaking.2.(俭朴) simple and frugal 生活刻苦 lead a simple and frugal life你如此艰难地尝试使一切事情变好: you try so hard to make sure everything goes right艰难: difficult; hard; arduous 艰难岁月 difficult days; arduous years; hard times; 生活艰难 live in straitened circumstances; 行动艰难 walk with difficulty