Translation of polysemy in Spanish

The entrance hall where the passports were checked was renovated and had many ads for products from Western countries. Once we passed it and picked up our luggage we were looking for a ride into the city.
I hope you can understand my English. I want to study English over the Internet! Sorry for not having written you during the last few days, but I am starting a new job on Monday and gotta relax till than.
We caught the last bus leaving from Calama to San Pedro the Atacama in the Atacama desert, the driest place on earth. Even NASA is using this place as a live moon simulation area. It was night though.