What does "Carlos strolls through the marketplace and buys a travel guide." mean in English for Spanish?

In English for Spanish, "Carlos strolls through the marketplace and buys a travel guide." means:

Carlos pasea por el mercado y compra una guía de viajes.

Listen to "Carlos strolls through the marketplace and buys a travel guide.": (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 2, Scene 12