会计学Potentialapotentialleader可能成为领导者的人exploit/fulfil/realizeone'spotential发掘[发挥/认识]自己的潜力2.SeniorHeistenyearsseniortome.他比我大十岁.seniorandjuniorofficers.高级军官和下级军官(often常作Senior,abbr缩写Sen)(placedimmediatelyaftersb‘sname置於姓名之後)beingtheparentofsbwiththesamename（父或母与子女同名情况下的）父或母:JohnBrownSenior老约翰.布朗.studentintheyearbeforegraduationfromahighschoolorcollege（中学或大学的）毕业班的学生:[attrib作定语]hersenioryearatcollege她在大学毕业班那一年.1、大学一年级学生：freshman2、大学二年级学生：sophomore3、大学三年级学生：junior4、大学四年级学生：seniorpathAlaneisanarrowcountryroad.*lane是乡间小径.Apathorfootpathisawaymarkedoutforpeopletowalkalong,betweenhousesinatownoracrossfields,besiderivers,etcinthecountry.*path或footpath是市镇中住宅之间或郊野中穿越田地﹑沿河等有标志的人行道.Atrackisaroughpathinthecountry,oftennotofficiallymarked,butmadebytheconstantpassingofpeople,animalsorvehicles.*track指郊野土路,常无正式标志,仅为人﹑动物或车辆走得多而形成者.Laneandtrackcanalsorefertotheseparatepartsofaroad(lane)orrailway(track)separatingcarsortrainspassinginoppositedirectionsorovertaking*lane和track还可指分开来自对面车辆或供超车用的部分路面,公路用lane,铁路用track:asix-lanemotorway有六条行车线的高速公路*adouble-trackrailwayline双轨铁路线.Runnersinanathleticsstadiumruninindividuallanes.在田径运动场上赛跑的人有各自的lane.*Thewholeareatheyrunoniscalledthetrack.进行赛跑的整个地段称为track.challenge1/ˈtʃælɪndʒ;ˋtʃælɪndʒ/n~(tosb)(todosth)acceptachallenge发出[接受]挑战.~(tosth)difficult,demandingorstimulatingtask艰巨的﹑高难度的或有激励性的任务:Reducingthegapbetweenrichandpoorisoneofthemainchallengesfacingthegovernment.缩小贫富之间的差距是政府面临的主要[Tn,Tn.pr,Dn.t]~sb(tosth要求某人做某事（尤指参加竞赛或证明某事正当）:Shechallengedthenewspapertoproveitsstory.她要求这家报纸证实报道的真实性.[Tn]怀疑（某事）的真实性﹑正确性或有效性;提出异议:challengesb‘srighttodosth怀疑某人是否有权力做某Thisnewdiscoverychallengestraditionalbeliefs.这项新的发现对传统观念提出了异议.[Tn]testtheabilityof(sb);stimulate考验（某人）的能力;激励;鞭策:Thejobdoesn'treallychallengehim.这项工作不能真正考验他.challengernpersonwhochallenges,espinsport提出竞争要求的人（尤指体育运动中）;挑战者.challengingadjofferingproblemsthattestsb'sability;stimulating（为考验某人的能力）提出难题的;激励的;挑战的:achallengingjob,test,assignment,etc激励人的工作﹑考验﹑任务等.positive/ˈpɔzətɪv;ˋpɑzətɪv/adj明确的指示﹑命令﹑规定等*Wehav