Translation of ábaco

There we saw a lot of these beautiful trees which I had heard about when I was back in Germany. We visited the folliage and saw some amazing lakes in the northern part of the state, different from the rest.
The view from the top was awesome. From there one could see that every house almost had a different color, but that the roofs were all tiled. I took my camera and took several images on diapositive.
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.