noun🔗Share耳廓，外耳。 The visible part of the ear that resides outside of the head, the auricle; outer ear excluding the ear canal."The doctor examined the child's pinna for signs of infection, carefully looking at the outer ear. "医生检查了孩子的耳廓（外耳），仔细观察外耳是否有感染迹象。anatomyorganpartbodyphysiologyChat with AIVocabulary GamePractice Reading
noun🔗Share羽片，小叶。 A leaflet or primary segment of a pinnate compound leaf."The botanist pointed to a fern and explained that each small, individual leaflet along its stem was called a pinna. "植物學家指著一株蕨類植物，解釋說它莖上那些細小、獨立的小葉，每一片都叫做羽片。biologyplantpartChat with AIVocabulary GamePractice Reading
noun🔗Share羽毛，翅膀，鳍 A feather, wing, fin, or other similar appendage."The scientist carefully examined the fossilized pinna of the ancient fish, noting its delicate structure. "科学家仔细检查了这只古代鱼的化石鱼鳍，并记录了它精巧的结构。anatomyanimalbiologypartorganismChat with AIVocabulary GamePractice Reading
