- 問題詳情:TeenagersatoneGermanschoolarelearninghowtoachievehappinessalongsideothertraditionalsubjectssuchasmathandlanguagesTheclasssitinacirclewiththeireyesshutandtheycountfromonetoten;someonestarts,thenextvoicecomesfromthefarright,athirdfromtheothersideT...
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