- 问题详情:Mostpeoplefeellonelysometimes,butitusuallyonlylastsbetweenafewminutesandafewhours.Thiskindoflonelinessisnotserious.Infact,itisquitenormal.Forsomepeople,though,lonelinesscanlastforyears.Nowresearcherssaytherearethreedifferenttypesofloneliness....
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