学生人数在迅速增加。

Student numbers are expanding rapidly.

《牛津词典》

学生的人数依然不清楚。

There's still confusion about the number of students.

《柯林斯英汉双解大词典》

女生占学生人数的56%。

Women make up 56% of the student numbers.

《牛津词典》

- Just to give you another several fun facts -- and next week, once we've looked at your Problem Set "Zero Submissions," which, if you haven't filled it out yet, you'll see asks a few demographic questions, a few geek-type questions so we can get a sense of the students.

我给你们分享另外几个有趣的事实-,在下周，一旦我们看到你们的习题集上是,“零个意见书“，如果你们还没有填写那个习题集的话，你们可以问一些人数统计方面的问题，或一些古怪的问题，那样我们就能对学生有个初步的了解。

哈佛公开课 - 计算机科学课程节选

so you tend to move along in the program with a smaller group of students.

所以你一般跟人数比较少的一组学生一起学这些课程。

大学也在这里 - SpeakingMax英语口语达人

And we are trying to level out the populations so that they balance the seating capacity.

我们正在把学生人数持平,这样座位数就持平了。

麻省理工公开课 - 固态化学导论课程节选