return feeder

例句：

1. 1. The farmer uses a special feeder to feed the cows.
   农民使用一种特殊的喂食器来喂养奶牛。
2. 2.The dog is always hungry, so he needs a feeder for his meals.
   狗总是饿的，所以他需要一个喂食器来喂他的食物。
3. 3. The scientist used a feeder to study the behavior of the animals.
   科学家使用一个喂食器来研究动物的行为。