3 sentences

1. 牧马人驱赶着马群向河边走去。

   mù​mǎ​rén qū​gǎn zhe mǎ​qún xiàng hé​biān zǒu​qù.

   The horse herder drove the herd toward the river.

   Source: Dong Chinese Dictionary

2. 在古代，牧民会把马群赶进闲里休息。

   zài gǔ​dài, mù​mín huì bǎ mǎ​qún gǎn jìn xián lǐ xiū​xi.

   In ancient times, herdsmen would drive horse herds into enclosures to rest.

   Source: Dong Chinese Dictionary

3. 他最擅长相马，一眼就能从马群中挑出真正的千里马。

   tā zuì shàn​cháng xiàng mǎ, yī yǎn jiù néng cóng mǎ​qún zhōng tiāo​chū zhēn​zhèng de qiān​lǐ​mǎ.

   He is a master at judging horses and can pick out a true prize steed from a herd at a single glance.

   Source: Dong Chinese Dictionary