earthwork
柯林斯词典
1. N-COUNT Earthworks are large structures of earth that have been built for defence, especially ones built a very long time ago. (尤指古老的)土木防御工事[usu pl]
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earthwork /ˈɜːθˌwɜːk/ (earthworks)
剑桥词典
- a raised area of earth made, especially in the past, for defence against enemy attack
（尤指旧时的）土垒防御工事 返回 earthwork