Translation of potent

Mike, you are very welcome, and thanks for cheering me up. The one thing about the advertisement section on top of the main page is quite right. The difference between your dress and her dress is very difficult to detect, there is only a little change in color.
Please explain me the exact differences between British and American .... This year I'm trying to make the TOEFL. We can then discuss how we can prepare for this exam. I failed the first time.
First of all I like to visit different places - but I like national parks, beautiful landscapes and unspoilt places in any country. Pure nature. We live in Dusseldorf - in the north of Germany.