underdevelopment
  未開發
  un·der·de·vel·op·ment /-əpmənt/ 名詞
  發育不全,發育不良,顯影不全,顯影不足
  underdevelopment
       n 1: state of inadequate development; "much poverty can be traced
            to the underdevelopment of industry"
       2: (photography) inadequate processing of film resulting in
          inadequate contrast