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"Enseñarles" is a form of "enseñar", a transitive verb which is often translated as "to teach". "Los" is a definite article which is often translated as "the". Learn more about the difference between "los" and "enseñarles" below.
los(
lohs
)A definite article is a word that identifies a noun as specific or known to the speaker (e.g., the girl).
A pronoun is a word that stands in for a noun (e.g., she).
enseñar(
ehn
-
seh
-
nyahr
)A transitive verb is a verb that requires a direct object (e.g., I bought a book.).
1. (to educate)
a. to teach
Perder su trabajo le enseñó a ser más trabajador.Losing his job taught him to be more hardworking.