substratum [ˈsʌbstreɪtəm]

例句:

• His re-creation of the city is credible, with a substratum of fact to bolster the fiction.
  他对该城历史的再现是可信的，虚构的小说情节隐念着一些事实作为支撑。
  
• The best nutrition supply was basic substratum mixed with rapeseed cake liquid.
  营养供给以基本基质加菜籽饼水液为佳.
  
• The story has a substratum of truth.
  这故事有事实的基础.
  
• Anatomical information...forms an excellent substratum on which to build future experiments.
  来自Nature
• That shows the standard here is a substratum that Van Commenee rarely deals with.
  来自THETIMES
• If we look more deeply I think we can find a substratum of common problems.
  来自R. Heilbroner