sprue

例句：

1. 1. The farmer feeds his pigs with this special sprue.
   这位农民用这种特殊的饲料喂他的猪。
2. 2. The dog's health was improved by the high-quality sprue he was given.
   狗的健康得到了改善，因为它被给予了高质量的饲料。
3. 3. The farm uses a variety of sprue to ensure the animals have all the nutrients they need.
   农场使用各种饲料以确保动物们拥有它们所需的所有营养。