- 問題詳情:Yoursmileisasignofhowyou’refeeling,andwhoyouare.Peoplewithbrightersmilesandwhiteteethappearyouthful,healthy,opentoconversationandsureofthemselves.Asmilesendsgoodmessagesaboutyourselftoothers—ittellsthemyoulookgoodandfeelgood.Abeautifulsmile...
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