求翻译成英文！！！！

seven principle of Hilton Hotel Management
1. each one of Hilton has to build its own feature according to the requirement of different cities and different countries.
2. good estimation
3. large quantity of purchase.
4. mining gold:make every little space to our profit.
5. training excellent person to keep the standard of hotel service and continuously improve the quality of our service.
6. increase marketing and emphasis on market investigation and study. especially pay more attention on public relationship that making good use of the advantage of the whole system to increase the advertisement sales.
7. we should help each other between each Hiltons on customer booking.

hope this will work.