| 释义 | swale
 swaleS0930600 (swāl)n.1.  A low tract of land, especially when moist or marshy.2.  A long, narrow, usually shallow trough between ridges on a beach, running parallel to the coastline.3.  A shallow troughlike depression that carries water mainly during rainstorms or snow melts.[Perhaps from Middle English, shade, perhaps of Scandinavian origin; akin to Old Norse svalr, cool.]
 swale(sweɪl) n (Physical Geography) chiefly a. a moist depression in a tract of land, usually with rank vegetationb. (as modifier): swell and swale topography. [C16: probably of Scandinavian origin; compare Old Norse svala to chill]swale(sweɪl)
 n.  Chiefly Northeastern U.S.  a low place in a tract of land, usu. producing ranker vegetation than the adjacent higher ground.  [1575–85; perhaps identical with dial. swale shade]
 Swaletimber planking, 1597.Thesaurus| Noun | 1. | swale - a low area (especially a marshy area between ridges)trough - a narrow depression (as in the earth or between ocean waves or in the ocean bed) | 
 Swale
 swale[swāl]  (geology) A slight depression, sometimes swampy, in the midst of generally level land. A shallow depression in an undulating ground moraine due to uneven glacial deposition. A long, narrow, generally shallow, troughlike depression which lies between two beach ridges and is aligned roughly parallel to the coastline.SwaleLow area of ground used for drainage and often the infiltration of stormwater.swale1. A tract of low, usually wet land. 2. A depression in a stretch of otherwise flat land.swale
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