Following are a number of back-translations as well as a sample translation for translators of Jeremiah 48:21:

• Kupsabiny: “Also the land of the hills will be destroyed
  including Holon, Jahzah, Mephaath” (Source: Kupsabiny Back Translation)
• Hiligaynon: “‘The towns in the valley on top of the mountain will- also -be-punished: the Holon, Jaza, Mefaat,” (Source: Hiligaynon Back Translation)
• English: “Yahweh will have punished the towns in Moab that are on the plateau/high level:
  Holon and Jahaz and Mephaath,” (Source: Translation for Translators)