beachheadWiktionary 原文中文来自 ECDICTn.滩头堡构词拆分beach词根/词干+head词根/词干词源说明From beach + head.释义（英文）名词 Noun(military) An area of hostile territory (especially on a beach) that, when captured, serves for the continuous landing (or movement into position) of further troops and material(by extension) A coastal landing place.(by extension) An initial