What does "a couple of years" mean in English for Spanish?

In English for Spanish, "a couple of years" means:

un par de años

Listen to "a couple of years": (If you have an HTML5 enabled browser, you can listen to the native audio below)

This is a phrase that is used in the GamesForLanguage English for Spanish Language Game in the following scenes:

  • English for Spanish 3, Level 3, Scene 11