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substratum ['sʌb'strɑ:təm, 'sʌb'streitəm]    添加到生词本 复制网址
基本释义
  • n. 下层;地基;根基
词形变化
  • 复　数：sub·stra·ta or sub·stra·tums
    形容词：sub·stra'tive
英英解释

  • 　3个名词解释

    1. a surface on which an organism grows or is attached
      [同] substrate, substratum
      [例]
      • the gardener talked about the proper substrate for acid-loving plants
    2. any stratum or layer lying underneath another
      [同] substrate, substratum
      3. show all ... ( 3 )