Помогите пожалуйста перевести фрагмент текста Медицинское образование в США , ну очеень долго думала , может кто-то догадается как это перевести)) :

Grading
Medical schools use a variety of different grading methods. Even within one school, the grading of the basic sciences and clinical clerkships may vary. Most medical schools use the pass/fail schema, rather than letter grades; however the range of grading intervals varies. In addition, sometimes it is important to evaluate the overall sense of how collaborative a student body is instead of basing judgment solely on grading intervals (i.e. a school with honors can still be very collaborative while some schools with pass/fail grading can be very competitive and individualistic). The following are examples of grades used with different intervals:

2 Intervals = Pass/Fail
3 Intervals = Honors/Pass/Fail
4 Intervals = Honors/High Pass/Pass/Fail (or ABCF)
5 Intervals = Honors/High Pass/Pass/Low Pass/Fail (or ABCDF)
In addition, a Medical School Performance Evaluation, also called Dean's letter, more specifically describes the performance of a student during medical school.