stub feeder

例句：

1. 1. The stub feeder was designed to keep the fish alive until they were ready to be released.
   断头式喂食器被设计用来保持鱼的活力，直到它们准备好被释放。
2. 2.The stub feeder was a popular choice for small children who loved to play with fish.
   断头式喂食器是小孩子们喜爱的选择，他们喜欢和鱼玩耍。
3. 3.The stub feeder was easy to use and provided a steady supply of food for the fish.
   断头式喂食器易于使用，为鱼提供了稳定的食品供应。