Most of the students are in the 17-20 age range.
大多数学生都是在17至20岁的年龄范围内。
About 20 percent of the students are absent today.
今天有大约20%的学生缺席。
In reading, 20 percent of students did not reach basic requirements.
在阅读这一项，20%的先生没有达到基本要求。
The number of the students in our school has risen by 20%.
我们学校学生的数量已增长了20%。
There are 20 girl students here, none of whom likes physics.
这里有20个女先生，他们当中没有人喜好物理。
There are 20 girl students here, none of whom likes physics.
这里有20个女先生，他们当中没有人喜好物理。
应用推荐