Flock

例句：

1. 1. The sheep were gathered in the field for grazing.
   羊群聚集在田野里吃草。
2. 2. The herd of cattle was led to the pasture.
   牛群被引导到牧场。
3. 3. A swarm of bees buzzed around the flower.
   一群蜜蜂围绕着花嗡嗡作响。