Translation of dreiteilig

Naturally, like everyone else, Italian think about themselves that they are the best. They think that Italy is a great nation and a great country, but these thoughts are never aggresive or political.
I'm so happy that you wrote to me and I miss you! We are doing great. We have settled in very fast. Luise is going to her kindergarden, Sofia to University and I'm going to work driving my car every day.
About multiple translations: We want students to memorize 'idioma' and 'lengua' as they are both very common. The best we could do is to place them in 2 different lessons, so that users learn them both.