Following are a number of back-translations as well as a sample translation for translators of Jeremiah 48:8:

• Kupsabiny: “There is no city that is not being destroyed,
  the deep valleys and high places will be destroyed.” (Source: Kupsabiny Back Translation)
• Hiligaynon: “‘A destroyer will-arrive in each town and no town can-escape. Including the towns in the valley and the so-called-plains on top of the mountain will-be-destroyed. This will- really -happen, for I, the LORD, (am) the-(one) saying this.” (Source: Hiligaynon Back Translation)
• English: “All the towns in Moab will be destroyed;
  none of them will escape.
  Towns in the valleys and on the plateau will all be destroyed,
  because I, Yahweh, have said that is what will happen.” (Source: Translation for Translators)