earthworkn.
英 'ɜːθwɜːk | 美 'ɝθwɝk
中文n. [建] 土方工程；土木工事
词根词源
earthwork (n.)"mounds of earth thrown up for some purpose, especially as a military fortification," 1630s, from earth + work (n.). In this sense Old English had eorðbyrig "mound, embankment;" Old English eorðweorc meant "work on the land."
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