What does Ezra 4:7 mean?

During the early years of Artaxerxes’ reign, Bishlam, Mithredath, Tabeel, and their associates wrote a letter to him. The letter was written in Aramaic and translated. Ezra 4:7 - Modern Text Bible

(A group of local leaders sent a letter to the new king, making their case in the official language of the empire.)