鸟食是由各种谷物制成的小颗粒。

The bird food consists of small grain ___pellets.

猎人用气枪发射小金属弹丸来打靶。

The hunter fired small metal ___pellets from his air rifle at the target.

我在清理鸟笼时发现了几粒干燥的粪便小球。

I found several dried ___pellets while cleaning the birdcage.