Following are a number of back-translations as well as a sample translation for translators of Isaiah 29:3:

• Kupsabiny: “I shall lay siege to you, Jerusalem,
  like David surrounded you.” (Source: Kupsabiny Back Translation)
• Newari: “I will make a camp all around you,
  and I will besiege you,
  and I will build siege towers against you.” (Source: Newari Back Translation)
• Hiligaynon: “I will-besiege the city of Jerusalem. I will-build little-towers around her to attack her, and I will-gather soil on the side of the stone-wall so-that it can-be-climbed-up.” (Source: Hiligaynon Back Translation)
• English: “I will cause your enemies to come to your city;
  they will surround it by building towers
  and putting in place other things with which to attack you.” (Source: Translation for Translators)