Translation of Kreisel

From my experience it is better to test it first with other students. It is difficult for me to give you exact information without knowing your teacher's needs. Please send me your email address.
And others are not, some of us are speaking (too) freely about it, without paying attention to what they really say. Some of us know how to restrain because we know that these feelings are malicious.
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.