Translation of Detonator

The billing of additional working hours is not justified, since it was our request to download the software and wait for the new version. They have admitted the error of the translation.
Just last week a friend of mine showed me how to do these special effect, so I was focused about this word. I have been sleeping five hours a night for a week now and I am pretty tired all the time. Hopefully recovery will come soon.
Learning a new language is never easy, especially the first foreign language. Unfortunately, it's a bit difficult for me as well. But the vocabulary exercises here are really good.