英语翻译课文：今天作业是到SeeEarthHistroychapert3lookitup!dinosaursdinosaursexistedonearthmorethansictymillionyearsbeforehumanbeings.theylivedeverywhere.somedinosaurswereassmallaschickens.otherswereasbigasten

　　英语翻译

　　课文：今天作业是到SeeEarthHistroy

　　chapert3lookitup!

　　dinosaurs

　　dinosaursexistedonearthmorethansictymillionyearsbeforehumanbeings.theylivedeverywhere.somedinosaurswereassmallaschickens.otherswereasbigastenelephants.somedinosaursevenhadwingsandcouldfly.somedinosaursweregentleandateplants.otherswerefierceandatemeat.dinosurasalldiedoutsuddenly.nobodyknowsthereason.however,proplecanlearnaboutthelivesofdinosaursfromfossilsoftheirskeletons,eggsandfootprints.(seeearthhistory)