短语词组短语feed pigs on grain 用谷物喂猪feed sb on 用feed d on 以…为食物;以Feed Oneself On Illusions 屠门大嚼Feed ducks on bread 用面包来喂鸭子feed -on system 供弹系统feed sb on sth 用……喂Cattle feed chiefly on grass 牛主要靠吃草为生 返回 feed on