释义：使某人安眠；使人[动物]失去知觉；使麻醉；（人）以人道方法杀死动物 英英释义： put to sleep v.help someone go to bedkill gently, as with an injection同义词：put awaymake unconscious by means of anesthetic drugs同义词：anesthetizeanaesthetizeanesthetiseanaesthetiseput underput out