背单词：高一英语必修第一册Unit5一词一句491.BillionThebillionairephilanthropistdonatedabilliondollarstofundeducationinitiativesinunderprivilegedcommunities.十亿这位亿万富翁慈善家捐赠了十亿美元，资助贫困社区的教育项目。2.NativeThenativeplantsandwildlifeintheconservationareathrivedunderthecarefulstewardshipofenvironmentalists.本地的自然保护区内的本地植物和野生动物在环保人士的精心管理下茁壮成长。3.AttitudeHerpositiveattitudetowardschallengesandsetbacksinspiredhercolleaguestoapproachdifficultieswithresilience.态度她对挑战和挫折持积极的态度激励了同事们以坚韧的心态面对困难。4.ReferenceThestudentsusedvariousreferencematerialstoenrichtheirunderstandingofthehistoricalevent.参考学生们使用各种参考资料丰富他们对历史事件的理解。5.ReferInthepresentation,thespeakermadesuretorefertodiverseperspectivestoprovideacomprehensiveanalysis.提到在演讲中，演讲者确保提到多元化的观点，以提供全面的分析。6.RefertoWhendiscussingculturaltraditions,it'simportanttorefertoreputablesourcesforaccurateinformation.参考在讨论文化传统时，重要的是参考可靠的来源获取准确的信息。7.SystemThehealthcaresystemunderwentsignificantimprovementstoensurebetteraccessandqualitycareforallcitizens.体系医疗体系经历了重大改进，以确保所有公民更好地获得高质量的医疗服务。8.DespiteDespitefacingfinancialchallenges,thesmallbusinessmanagedtothriveandexpanditsoperations.尽管尽管面临财务挑战，这家小企业仍然成功茁壮成长并扩大业务。9.UpsanddownsMarriageisajourneyfilledwithupsanddowns,requiringpatience,understanding,andcompromise.起伏1婚姻是一场充满起起伏伏的旅程，需要耐心、理解和妥协。10.FactorAsupportivesocialnetworkcanbeacrucialfactorinmaintainingmentalwell-beingduringchallengingtimes.因素一个支持的社交网络可以是在困难时期保持心理健康的关键因素。11.BasedThenovelwasbasedontheauthor'spersonalexperiences,addingdepthandauthenticitytothestoryline.基于这部小说是基于作者的个人经历，为故事情节增添了深度和真实感。12.BaseThesuccessoftheprojectwasbuiltonastrongbaseofcollaborationandmutualrespectamongteammembers.基础项目的成功建立在团队成员之间紧密合作和相互尊重的坚实基础上。13.Dateback(to...)TheancientruinsdatebacktotheRomanEmpire,offeringaglimpseintotherichhistoryoftheregion.追溯至古代遗迹可追溯至罗马帝国时期，展现了该地区丰富的历史。14.BoneThearchaeologistsdiscoveredfossilizedbonefragments,sheddinglightonprehistoriclifeintheregion.骨骼考古学家发现了化石化的骨骼碎片，揭示了该地区史前生活的面貌。15.ShellThechild