骡子在英语中叫做 mule。这个词来源于拉丁语 "mulus"，最初指的是一种杂交动物，是马和驴的后代。例句：

She rode the mule up the steep mountain trail. (她骑着骡子爬上了陡峭的山路。)

The mule stubbornly refused to move. (骡子顽固地拒绝前进。)

The mule is a hybrid animal, resulting from the mating of a male donkey and a female horse. (骡子是一种杂交动物，由公驴和母马交配后诞生。)