a narrow edge of land (usually unpaved) along the side of a road; "the car pulled off onto the shoulder" 同义词：shoulder,
a narrow ledge or shelf typically at the top or bottom of a slope
A berm is a level space, shelf, or raised barrier separating two areas. The word berm originates in the Middle Dutch and German berme and came into usage in English via French.
例句与用法
1.
At the top of the shore is a berm . 海岸顶上是后滨阶地。
2.
Back - berm trough 滩肩后凹槽
3.
The report takes account into the influence of foreshore and shallow foreshore , roughness , slope , berm , wave attack angle , vertical wall and so on 报告给出了复杂断面上波浪爬高和越浪量的计算公式，计算中考虑了前滩、边坡糙率、边坡坡度、平台、波浪入射角以及竖墙等因素的影响。
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