undersoil

名词 n.
中文释义

英文释义

名词 n.
  1. The soil underneath the surface / topsoil and above the bedrock.
    — It is a singular fact, that on the two great continents in the northern hemisphere […] we have the zone of perpetually frozen under-soil in a low latitude […]

词形变化

undersoils plural

词源

From under- + soil.
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