我wǒ是shì一yì名míng大dà学xué学xué生shēng。

I am a university student.

这zhè位wèi老lǎo师shī有yǒu三sān十shí个gè学xué生shēng。

This teacher has thirty students.

这zhè个ge学xué生shēng很hěn努nǔ力lì。

This student is very hardworking.

这zhè班bān有yǒu三sān十shí个gè学xué生shēng。

This class has thirty students.

他tā是shì一yì名míng好hǎo学xué生shēng。

He is a good student.