pack animal
US /ˈpæk ˌæn.ɪ.məl/
UK /ˈpæk ˌæn.ɪ.məl/
1.
驮畜, 役畜
an animal used to carry loads, especially one that is not ridden
:
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Mules are commonly used as pack animals in mountainous regions.
骡子在山区常被用作驮畜。
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Camels are important pack animals in desert environments.
骆驼是沙漠环境中重要的驮畜。