I think this is something we all know,,,

Is it true that you are selling this for money;; Doesn't Infraon manage this kind of thing?

It seems a bit too much for the price... I don't think it's right to base the price on something that isn't even up to the standard of an internet blog.

Thank you for the great lecture.

Studying English was a daunting task, but I think these tips will be useful because they allow you to study without spending a lot of money :)