setting-back of a levee的: 4次方是 The fourth power of 2 i ...下: below; down; under; undernea ...部分: part; section; portion无护堤的: unembanked防护堤: bulwark; dike; fending groin; fending groyne; grogue; parapet levee; protection embankment下载手机词典可随时随地查词查翻译关注微信公众号：chachacidian，回复:防护堤的下埋部分，即可在微信中查询翻译
