剑桥词典a rare eating disorder in which someone, especially a child , swallows food , brings it back up from the stomach , and then chews it and swallows it again （罕见）反刍症 Merycism is found mainly in young children and people with mental disabilities . 反刍症主要在儿童或有精神疾病的人中发生。 返回 merycism