deer A type of medium to large size ruminant mammal with antlers. It usually lives in forested areas.另请参见Moose (largest species of deer)ReindeerAntelope (deer-like animals with horns)External linksWikipedia: Deer 一种中等至大尺寸的反刍动物哺乳动物，带有鹿角。它通常生活在森林地区。