pack animal
US /ˈpæk ˌæn.ɪ.məl/
UK /ˈpæk ˌæn.ɪ.məl/

名词
1.
驮畜, 役畜
an animal used to carry loads, especially one that is not ridden
示例:
•
Mules are commonly used as pack animals in mountainous regions.
骡子在山区常被用作驮畜。
•
Camels are important pack animals in desert environments.
骆驼是沙漠环境中重要的驮畜。
在 Lingoland 学习这个单词