sheet feeding

例句：

1. 1.The baby is fed on a soft mattress.
   宝宝在软床上喂养。
2. 2. She fed on the leftovers from last night's dinner.
   她吃了昨晚晚餐的剩菜。
3. 3.The dog was fed on the grass in the park.
   狗在公园里的草地上吃草。