interfluve       
noun [ C ]  geography specialized uk/ˈɪn.tə.fluːv/ us/ˈɪn.t̬ɚ.fluːv/
 河间地,江河分水区,分野
a higher area between the valleys of streams or rivers
  Interfluves are areas of high terrain located between valleys.  河间地是指位于山谷之间的高地带。 
 In the Danube-Tisza interfluve, lakes are threatened by environmental problems. 在多瑙-蒂萨河间地,湖泊正受到环境问题的威胁。 
 - More examples
 - Wide, shallow valleys are separated by interfluves.
 - Cultivation in the interfluves has increased.
 - The area has well-drained interfluves.