单词	underdrain
释义	underdrain 1 of 2 noun : a concealed drain with openings through which the water enters when the water table reaches the level of the drain an underdrain below a filter bed underdrain 2 of 2 transitive verb : to drain by forming an underdrain underdrain a meadow Word History Etymology Noun under entry 3 + drain
随便看	common common adjective common appendant common appurtenant common ash common assumpsit common assurance common at large common average common bail common bar common barberry common barrator common bond common brick common bronzewing common buckthorn common buckwheat common bundle common carp common carrier common cattle grub common chemical sense common chickweed common chord

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