Here are the results of the student activity survey at Green High_英语解答

Here are the results of the student activity survey at Green High School.
为什么用student,而不是students?

人气：146 ℃　时间：2020-01-29 10:53:45

解答

the results of student activity survey 学生活动调查的结果
student作定语,限定activity survey