- 问题详情:Electronicdevices(装置)arechangingthewaypeoplelistentomusic.Butstudiesshowthedevicesmaybecausinghearinglossinmanypeople.Someexpertssaypeoplemaybeplayingthemtooloudandfortoolong.Andexpertssaysoundlevelsonthesedevicesneedtobesetlower.Researchersdidas...
- 14231