英语翻译
Theyassumedthataneffectcalled"healthselection"wasinplay-thosewhoselectyoungerpartnersareabletodosobecausetheyarehealthierandthusalreadyhaveahigherlifeexpectancy.
语境
Womenwhomarrysignificantlyyoungermen,orsignificantlyoldermen,haveashorterlifeexpectancythanwomenwhowedmalesabouttheirownage,accordingtonewfindingsbyGermanscientists.
Previousstudiesshowedthatmenwithyoungerwiveslivelonger.Foryears,researchersthoughtthatthisdatawastrueforbothsexes.
Theyassumedthataneffectcalled"healthselection"wasinplay-thosewhoselectyoungerpartnersareabletodosobecausetheyarehealthierandthusalreadyhaveahigherlifeexpectancy.
so在这里指什么