Possessive case There has been a fall in the price of food. 食品的价格有所下跌。
Possessive case Students caught cheating face disqualification from all or part of their exams, or the deduction of marks from their work. 因考试作弊被抓住的学生可能会被取消部分或所有课程的考试资格,或者受到扣分的处罚。
On the Meanings and Usages of the Possessive Case of the English Nouns 论英语名词所有格的意义及用法