词汇 | substratum |
释义 | substratum noun [ C ] uk/səbˈstrɑː.təm/ us/səbˈstræt̬.əm/ substrata /səbˈstrɑː.tə/ /səbˈstræt̬.ə/ (LOWER LAYER) geology specialized底土层;底土,心土 a layer of rock, soil, or similar material that is below another layer A substratum of clay kept moisture close to the topsoil. 底土层的黏土使水分保持在表层土附近。 They planned to sink over twenty-five deep boreholes into the ground to assess the substrata. 他们计划在地下钻二十五个深井以评估底土层。 (位于一层物质下面的)底层,下层 a part or layer of something that is below another part or layer Apply a substratum of lash powder and then quickly seal with a stroke of mascara. 涂一层睫毛粉打底,然后迅速用睫毛膏封住。 "Underclass" is used by sociologists to mean a substratum of society somewhere below the working class. 社会学家用"下层阶级"来指比工人阶级低的社会底层。
(BASIS) 基础,本源;赋予属性的东西 something important from which something else develops, but that is not immediately obvious There is a broad substratum of truth in what she says. 她所说的话有广泛的事实基础。 Would a jury conclude that a sufficient factual substratum existed for the comment? 陪审团是否会得出结论,认为评论存在足够的事实基础?
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