Yoursmileisasignofhowyou’refeeling,andwhoyouare.Peoplew...
問題詳情：Yoursmileisasignofhowyou’refeeling,andwhoyouare.Peoplewithbrightersmilesandwhiteteethappearyouthful,healthy,opentoconversationandsureofthemselves.Asmilesendsgoodmessagesaboutyourselftoothers...