Following are a number of back-translations as well as a sample translation for translators of Ezra 3:8:

• Kupsabiny: “Therefore, in the second month of the second year, after the people had returned to Jerusalem, Zerubbabel son of Shealtiel with Jeshua son of Jozadak started to rebuild the House of God. The priests and the Levites joined with all the people who had come from slavery. The Levites who had (were) twenty years onwards were chosen to be in charge of the work of the building of the House of God..” (Source: Kupsabiny Back Translation)
• Newari: “In the 2nd month of the 2nd year of their arrival at the Tempel of God to Jerusalem, Zerubbabel the son of Shealtiel, Jeshua the son of Jozadak, priests, Levites and all the people returned from Jerusalem started the work. They chose Levites 20 years old and older to supervise the work of building the temple of the LORD.” (Source: Newari Back Translation)
• Hiligaynon: “The building/[lit. cause-to-stand] of the temple started on the second month of the second year from when the Israelinhon had-been-able-to-return to Jerusalem. Everyone who had-been-able-to-return to Jerusalem from captivity united to work, including here were Zerubabel the child of Shealtiel, Jeshua the child of Jozadak and his fellow priests, and the Levites. The ones-who-were-in charge to supervise the building of the temple of the LORD were the Levites who were 20 years old above.” (Source: Hiligaynon Back Translation)
• English: “The Israelis started to rebuild the temple in the spring/time before the hot season of the second year after they returned to Jerusalem. Zerubbabel and Jeshua and all the people who had returned to Jerusalem worked on the building. All the Levites/men who did work in the temple supervised this work.” (Source: Translation for Translators)