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.