单词	endorphin
释义	endorphinen‧dor‧phin /enˈdɔːfɪn $ -ˈdɔːr-/ noun [countable usually plural] Word Origin WORD ORIGINendorphin Origin: 1900-2000 endo- ( ➔ ENDOCRINE) + morphine Examples EXAMPLES FROM THE CORPUS Naltrexone keeps heroin from activating endorphin receptors, without activating them itself. They may also enhance endorphin release. a chemical produced by your body that reduces pain and can make you feel happier
随便看	periphrasis periphrastic periscope perish perishable perishables perished perisher perishing perishingly peristyle peritonitis periwinkle perjure perjured perjurer perjury perk perkily perkiness perky Perlman, Itzhak perm permafrost permanence

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