Australia is a unique country.It's the world's largest island 澳大利亚是一个非常独特的国家.它是世界上最大的岛. but it's also the world's smallest continent. 但它也是世界上最小的州. In fact,Australia is the only country that is also a continent. 事实上,澳大利亚是世界上唯一也是个州的国家. It's about the size of the United States, 它大约与美国一样大, but it has a population of only 16.5 million. 但它的人口只有1650万. If it sounds like an interesting place to visit, 如果它听起来象一个值得走访的好去处的话, that's because it is. 那是因为它确是个值得走访的好去处.