英语词汇“understratum”是什么意思，“understratum”的读音、用法及例句翻译-乐坝网

词汇	understratum
释义	un·der·stra·tum AHD[ŭnʹdər-strā'təm, -străt'əm] D.J.[ˈʌndəˌstreɪtəm, -ˌstrætəm]K.K.[ˈʌndɚˌstretəm, -ˌstrætəm]n.（名词）【复数】 un.der.stra.ta[-strā'tə, -străt'ə] 或 un.der.stra.tums A substratum.基底
随便看	dire direct direct access storage device direct action direct-action direct current direct deposit directed directed angle directed distance directer directest directing direction direction directional directional antenna directional signal directioned direction finder directioning directions directive directives directly

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