Usages of τρία
Η φίλη μου μαθαίνει άλλη γλώσσα εδώ και τρία χρόνια, δηλαδή ισπανικά.
My friend (female) has been learning another language for three years, that is Spanish.
Έχω τρία βιβλία στο σαλόνι.
I have three books in the living room.
Elon.io is an online learning platform
We have an entire course teaching Greek grammar and vocabulary.