"Mine" is a pronoun in Engpsh which is used to refer to something that belongs to or is associated with the person speaking or writing. It is used as a possessive form.

The origin of the word "mine" can be traced back to the Old Engpsh word "min" which means "my." The word has evolved over time and is now commonly used in Engpsh to refer to something that belongs to the speaker.

Here are some example sentences and their translations:

This pen is mine. (这支笔是我的)
The book on the table is mine. (桌子上的书是我的)
The car parked outside is mine. (外面停放的车是我的)

In conclusion, "mine" is a possessive pronoun in Engpsh that refers to something that belongs to the speaker.