污染问题PollutionProblemRecently,aChinesestudentwhostudiedabroaddeliveredaspeechatthegraduateceremony.Herspeechsoonbecamethehotissue,becauseshecriticizedChineseairpollution,whichwasagreatthreattoherhealth.Thoughherspeechhadexaggeratedtheproblem,itistruethatChinahasfacedmanypollutionproblems.ThehazeinBeijingisfamousaroundtheworld,whichisthepunishmentforhumantoruintheenvironment.Itneedstimetofixtheproblem,butthereisnoneedtodenyourcountry.Evenforthedevelopedcountries,theyhaveoncefacedsuchproblembefore.Wecandosomethinginthedailylifetoprotectit,suchasdonotthrowawaytherubbish.最近，一位中国留学生在毕业典礼上发表了演讲。她的演讲很快就成为了热点话题，因为她批判中...
