沖蝕作用穿掘,挖掘底部沖刷底部淘空底切底蝕作用基蝕潛淘潛挖淘底淘空,挖坑道淘刷挖坑道undermine: vt. 掘…的下面,在…下面掘地道,暗掘;沖蝕;削弱…的 ...levee undermining: 堤底淘刷successive undermining: 連續地下挖掘undermine(undermining): 底蝕undermining blast: 坑道爆破; 坑內爆炸; 坑內開炸; 潛挖爆破下載手機詞典可隨時隨地查詞查翻譯