Translation of betroffen

He also told me that he had build his scooter by himself. I could not understand how a doctor was able to build such a machine on his own. It seems that the circumstances made people capable of many things.
I have been there once for vacation, but I was too little. It was twelve years ago, when I was still a child. I went there with mom and dad and all I cared about is beach and sand, no culture.
I found a pair of Nike shoes for a bargain and I do not know until this day why those shoes were so cheap. I am sure that they are not fake, as they are great quality. My wife also bought a pair.