digger
noun [ C ] uk/ˈdɪɡ.ər/ us/ˈdɪɡ.ɚ/
挖掘机，掘进器
a machine used for digging
a mechanical digger 挖掘机
Australian English淘金者，淘金矿工
a person who mines for gold (= removes it from under the ground)
See also: gold digger
Australian English informal（尤指一战中的）澳大利亚士兵
an Australian soldier, especially one who fought in the First World War