Translation of chew in Spanish

I am studying economics for my MA at University of California and I should stay in the US for about 4 years. My English is not good. But I want learn this language. You want learn German? yes I can teach you German. I wish you a nice day.
Just as we finished exploring the temple and were about to leave the big tourist buses arrived. We listened to a Cambodian song played by a group of handicapped musicians and left to see other sites.
After an hour flight and 1000km further south, we landed in Calama. It was already 9pm and it was already dark. We still weren't at our final destination, but much much closer. We took a cab again to the city center.