Following are a number of back-translations as well as a sample translation for translators of Jeremiah 17:8:

• Kupsabiny: “That person is like a tree that has been planted beside a stream
  pushing its roots into that stream.
  When the days of sun (shine) arrive it is not anxious
  because its leaves are always green.
  It is not troubled when it does not rain
  but continues to produce fruits.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “He is like a tree planted beside the stream, whose roots spread into the water. This tree does not fear when hot-season or a long dry-season comes. Its leaves are always green and does not cease to bear-fruit.” (Source: Hiligaynon Back Translation)
• English: “Those people are like fruit trees that have been planted along a riverbank,
  trees that have roots that go down into the wet ground beside the water.
  They are trees whose leaves remain green when it becomes hot,
  trees that continue to bear fruit when there are many months in which there is no rain.” (Source: Translation for Translators)