![Inthemiddleofwinter,whensnowisfallinginmanypartsoftheUn...]( "Inthemiddleofwinter,whensnowisfallinginmanypartsoftheUn...")
- 問題詳情：Inthemiddleofwinter,whensnowisfallinginmanypartsoftheUnitedStates,scientistshavesoundedawarningtopeoplewhoplantospendmanyhoursinthesunthissummer.Thewarning:Thesun’ssummertimeraysaremoredangerousthanoncethought.Ateamofscientistsfrom80nationsr...
- 13642
中文谷