This is the 7953rd most frequent Chinese word.
高中生
High school student.
The term '高中生' is used as the subject of the sentence, referring to students who are currently in high school and emphasizing their role and actions.
高中生努力学习，为了考上大学。
High school students study diligently to get into college.
Here, '高中生' is used to describe the speaker's sister, indicating that she is currently attending high school and identifying her academic level.
我的妹妹是一个高中生，喜欢学数学。
My younger sister is a high school student and enjoys learning mathematics.
In this sentence, '高中生' refers to each individual student in high school, highlighting a requirement applicable to all members of this group.