简介：“Let＇sgo,Englisherivironmentalprotectors!”随着响亮的口号响起，浔溪小学的“英语环保小卫士们”走上了街头。时值南浔旅游节，小卫士们带着自制的英语环保标语，穿梭在古镇的街道上，向商贩、游人，居民宣传环保的重要。街边的墙上，

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简介：MYfatherHéctorMoraisafamousColombiandocumentarydirector,producer,andjournalist.Hewasdubbed“theGooglemapofhistime”and“theonewhohelpedColombianstoseetheworld”bylocalmediaforwhathedid.From1977to2001,myfathersetfooton107countriesandregions,making1,250documentaries,amongwhich52arerelatedtoChina.Theprogramshemadewerethefirst,bothinColombiaandinotherpartsofSouthAmerica,todepictChina.

简介：AbstractObjective:The aim of this study was to analyze the outcomes and complications of endoscopic tympanoplasties and review the strategies for endoscopic revision surgeries.Methods:Revision endoscopic surgeries are performed on patients with unsatisfactory outcomes after endoscopic tympanoplasties. This study was approved by the Ethics Committee of Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, China (approval No. 2020-0045-1).Results:Residual or recurrent tympanic membrane marginal perforation is treated by autogenous fat and cartilage grafting; graft collapse is treated using tissue from the tragus; and graft displacement is treated by endoscopic fixation of the cartilage-perichondrium complex. Lateral healing of the tympanic membrane, prosthesis fracture, prosthesis extrusion, middle ear adhesions, and recurrent perforation also required revision surgeries.Conclusion:Residual or recurrent tympanic membrane marginal perforation is the most common cause of unsatisfactory outcomes after endoscopic tympanoplasty; fat grafting is effective only for small perforations. Small cartilage grafts are an effective means of dealing with residual marginal perforation; the cartilage and perichondrium complex should be fixed securely. Patients with prosthesis implants require regular examination.

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简介：Doyouknowthatevery14daysalanguagedies？Throughouthumanhistory,thelanguagesofpowerfulgroupshavespreadwhilethelanguagesofsmallercultureshavebecomeextinct.Asbiglanguagesspread,childrenwhoseparentsspeakasmalllanguageoftengrowuplearningthedominantlanguage.

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简介：<正>Brazil,asagreatdevelopingcountry,signedtheagreementonandbecameoneofthethirty-oneoriginalsignatorycountriesofGATTmorethanthirtyyearsago.WhatbenefithasBrazilobtainedfromthepreferenceofferedtodevelopingcountriesbyGATT?WhateffectonearthdidGATTtakeontheeconomyofBrazil?First,let’shaveareviewonthedevelop-

简介：小朋友们，地球妈妈最爱心情很不好，因为她“生病”了。水土流失、雾霾、土地沙漠化、全球变暖，这些都是人类长期不合理的生产生活方式造成的，让我们从小事做起，和秋天姐姐一起，做个环保小卫士吧！

简介：OnJuneI7,1744,theofficialsfromMarylandandVirginiaheldatalkwiththeIndiansoftheSixNations.TheIndianswereinvitedtosendboystoWilliamandMaryCollege.Inaletterthenextdaytheyrefusedtheofferasfollows:

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简介：On25March1994,theStateCouncilofChinaapprovedChina'sAgenda21--WhitePaperonChina'sPopulation,EnvironmentandDevelopmentinthe21stCentury.Onthatsameday,theAdministrativeCentreforChina'sAgenda21(ACCA21)wasestablishedtomanagethedailyaffairsandfacilitatetheimplementationofChina'sAgenda21.Inthepast10years,ACCA21hasdonemanyfruitfulworkonassistingtheformulationandimplementationoflocalAgenda21,promotingsustainabledevelopmentofscienceandtechnology,enhancinglocalcapacityofsustainability,promotinginternationalexchangeandcooperationandraisingpublicawarenessofsustainabledevelopmentandunderstandingofChina'sAgenda21.

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