成群的角马在广阔的草原上迁徙。

A ___herd of wildebeest migrates across the vast savanna.

牧羊犬帮助农场主把羊群赶回羊圈。

The sheepdog helped the farmer ___herd the sheep back to the pen.

她不想随大流，总是坚持自己的想法。

She didn't want to follow the ___herd and always stuck to her own ideas.