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"Unos" is a form of "un", an indefinite article which is often translated as "a". "Libros" is a form of "libro", a noun which is often translated as "book". Learn more about the difference between "unos" and "libros" below.
un(
oon
)An indefinite article is a word that indicates that a noun is not specific (e.g., a girl).
1. (singular)
b. an (before vowel sound)
Tienen una vieja cámara que todavía funciona.They have an old camera which is still working.
el libro(
lee
-
broh
)A masculine noun is used with masculine articles and adjectives (e.g., el hombre guapo, el sol amarillo).
a. book
Leer un libro es perderse en otro mundo.To read a book is to get lost in another world.
Esperamos una hora para que el autor firmara nuestra copia de su libro.We waited an hour for the author to sign our copy of his book.
