AnAmericanresearcherhasdevelopedasimpledevicetohelppeop...
问题详情：AnAmericanresearcherhasdevelopedasimpledevicetohelppeoplestopsnoring．Thedevicelimitsthemovementsofthetissues（组织）thatcausetheunpopularsound．Snoringisacommonproblem．Itmaypreventapersonfromgettingen...