Translation of contravene in Spanish

On the drive into the city center we were a little shocked by the amount of motorcycles, by the pollution and stress in that city. After only two days in a small village we forgot how it was.
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.
Nice to meet you. Your German is not bad at all, stop being so insecure. I have been learning Spanish for 3 weeks only. I am visiting a private Spanish teacher. It is very expensive but good.