学生

学生

Student.

Here, '学生' is a noun used to identify the speaker's role or identity.

我是一个学生。

I am a student.

In this sentence, '学生' is a noun modified by the adjective '好' to describe the quality of the person.

他是一个好学生。

He is a good student.

Here, '学生' is used as a countable noun to indicate multiple individuals who learn at a school.

你在学校看到很多学生。

You see many students at the school.