Translation of rally

I will add a feature to the dictionary builder tool, that marks a word as vulgar. The words that are shown in the tool are words that users did not find in our dictionary and a lot of them are vulgar.
Everything in your letter is perfect! Almost no errors and the writing style, very impressive! After this first year in England, you have also improved your vocabulary and the grammar skills.
I am glad that you accepted my offer. I would like to write letters and emails in English and if you want you can write back to me in German. I want to correct your German and so we will both get better.