revetment

n 1 facing of masonry,concrete, sandbags, etc on a wall or an embankment, esp of a fortification 铺面, 砌面（护墙或护堤所用的砖石、 混凝土、 沙袋等结构）（尤指用於工事的）. 2 retaining wall 挡土墙; 拥壁.

reverend, Reverend Mother, reverent, reverential, reverentially, reverie, reverler, revers, reversal, reverse, reverse gear, reverse turn, reversed, reversibility, reversible, reversing light, reversion, reversionary, revert, revertible, review, reviewer, revile, revise, revised, revision, revisionism, revisionist, revitalization, revitalization, revitalisation, revitalize, revitalize, revitalise, revival, revivalism, revivalist, revive, revived, revivify, revocation, revoke,