Translation of Jahrgang

He has already asked me for packaging instructions: They said that you should place them in the original box, which you have kept. That's all I have got from them. I hope that you and your child are both well.
We begin to talk about 'we' and 'they', which makes us partly discriminating. As a whole, I guess that all of us have some predispositions, but the difference is, that some know how to supress it.
Is there a way that I could test your Spanish and German lessons? Quality is very important to me. Can you send me a lesson electronically (by email or word)? Maybe you have your lesson ready.