Doctorshaveknownforalongtimethatextremelyloudnoisescanc...
問題詳情：Doctorshaveknownforalongtimethatextremelyloudnoisescancausehearingdamageorloss.Thenoisecanbethesoundofajetairplaneormachinesinfactoriesorloudmusicorothercommonsoundsfoundathomeandatwork.Aperso...