ungulate

例句：

1. 1. The herd of cattle is moving towards the river.
   牛群正朝河边移动。
2. 2.The ungulates are a major source of meat and dairy products.
   牛类动物是主要的肉类和乳制品来源。
3. 3.The ungulates have been an important part of human history for thousands of years.
   牛类动物自古以来一直是人类历史的重要组成部分。