Its mutton, for example, comes from sheep raised on the relatively unpolluted Mongolian plains.

比如，小肥羊使用的羊肉全部来自相对无污染的蒙古草原。

youdao

So, the words we use for most animals raised for food, such as ox, cow, sheep and pig, come from old English, while the words for the meat people eat come from French: beef, mutton, pork and bacon.

所以，表示饲养食用动物，如公牛，母牛，羊和猪时，我们使用了古英语的单词；而像牛肉，羊肉，猪肉和熏猪肉这些人们吃的肉类的单词却源于法语。

youdao