AnAmericanresearcherhasdevelopedasimpledevicetohelppeop...
問題詳情：AnAmericanresearcherhasdevelopedasimpledevicetohelppeoplestopsnoring．Thedevicelimitsthemovementsofthetissues（組織）thatcausetheunpopularsound．Snoringisacommonproblem．Itmaypreventapersonfromgettingen...