- 問題詳情:DearMark,I'mverygladyouaresointerestinginourschool.Recentourschoolislaunchinganactivitytocallforthrift(節儉)andgoagainstwaste.Everystudentwasrequiredtosavepaper,water,electricityorfood.Allwastepapermustbecollectedandsoldtohelppoorstudent.Wat...
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