单词	underclay
释义	underclay noun : a layer of clay beneath a coal bed often containing fossil roots of coal plants and constituting fireclay Word History Etymology under entry 3 + clay
随便看	antipathetic antipathetically Antipathida antipathies antipathist antipathists antipathize antipathy antipatriotic antipedal antipedobaptism antipedobaptist antipendium antiperiodics antiperistalses antiperistases antiperistasis antipernicious anemia factor antipersonnel antiperspirant dibbles dibbling dibbuk dibbuks dibenz-

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