- 问题详情:Sittingstillandkeepingquietseemslikewhatstudentsshoulddoinclass.However,puttingyourfeetonthetable,usingiPads,eatinganddrinkingmayalsotakeplaceinschool.Americansarefamousfortheircasual(随意的)style.Ididn’tthinkitwasabigdealuntilIarrivedhere.I...
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