taproot [ˈtæpˌrut, -ˌrʊt]

例句:

• Curiosity is the taproot of an intellectual life , the most valuable of our simian traits.
  好奇是高智生命的根源，也是我们类人猿特征中最有价值的部分。
  
• The root system of the soybean consists of a taproot formed by the radicle.
  大豆的根系包括由胚根形成的主根.
  
• Censorship strikes at the taproot of our free society.
  检查制度动摇我们自由社会的根基.
  
• If the soil is dry, it can put all its energy into sending a single taproot in search of groundwater.
  来自NEWYORKER