Translation of strenuousness in German

It is very important that you know the exact needs of your students. There are a lot of details involved in this learning process. One should always check all options and decide what is best.
I have another small request: Is it possible that your webmaster sends us the loading html (the one that is displayed during the download of the large html)and the instruction of how to install it?
I visited the Hurricane watch center's website on a hourly basis hoping it would just go away, bt hurricane Ivan was on a direct path to Havana. It did not stop my vacation plans and I left the office.