Translation of abstammen

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.
However, if you are able to link to us from another major site (school site, language site, maybe even a good private site), I will be able to convince my colleagues to make an exception and upload your lessons.
We have cut the description though, since it was too long. However, we would like to change the description again, by adding a geographic spot in it or telling the user that it is E-learning.