Translation of außer

He also told me that he had build his scooter by himself. I could not understand how a doctor was able to build such a machine on his own. It seems that the circumstances made people capable of many things.
They point out eachother's mistake whenever they try to negotiate and approach. Despite a good reason for reconciliation there still exist plenty of prejudices and many have no confidence in the treaty.
Once at the island we climbed up the limestone mountain and got a superb view of the entire bay area. The cave by itself was also impressive and our guide explained about how this cave was discovered.