- 問題詳情:Whythinkofroadsafety?Itisbecauseoftheaccidentsthathappeneverydayontheroad.Theseaccidentsmeanlosinglifeorwealthandmorethantrafficjams.Soifpeoplearen'teducatedontheimportanceofroadsafety,thesituationcan'tbeavoided.Accidentshavemanycausessimple...
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