bats

例句：

1. 1. Bats are nocturnal animals that spend their lives in the dark.
   蝙蝠是夜行性动物，它们一生都在黑暗中度过。
2. 2. The bats were flying around the cave when I arrived.
   我到达时，蝙蝠们正在洞穴周围飞翔。
3. 3. Bats are known for their echolocation ability, which helps them navigate through the darkness.
   蝙蝠以其回声定位能力而闻名，这有助于它们在黑暗中导航。