Я возвращаю книгу в библиотеку.I am returning the book to the library.Breakdown of Я возвращаю книгу в библиотеку.книгаbookвin / to (direction)библиотекаlibraryвозвращатьto return, to give backElon.io is an online learning platformWe have an entire course teaching Russian grammar and vocabulary.Start learning Russian now