glacisn.
英 'glæsɪs; -sɪ | 美 'glesɪs
中文n. 斜堤；缓慢倾斜，缓斜坡；缓冲地区
词根词源
glacis (n.)"sloping bank" (especially leading up to a fortification), 1670s, from French glacir "to freeze, make slippery," from Old French glacier "to slip, glide," from Vulgar Latin *glaciare "to make or turn into ice," from Latin glacies "ice" (see glacial).
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