求翻译：澳大利亚不仅国土辽阔，而且物产丰富，是南半球经济最发达的国家，是全球第四大农业出口国，也是多种矿产出口量全球第一的国家。澳大利亚是一个移民国家，奉行多元文化，20%的居民出生在澳大利亚以外的国家和地区。澳大利亚也是一个体育强国，是全球多项体育盛事的常年举办国。是什么意思？

Australia not only vast, but rich, is the most developed country in the southern hemisphere, is the world's fourth-largest agricultural exporter, is also a variety of mineral exports First Nations in the world. Australia is a country of immigration, pursuing the multicultural, 20% of the residents were born in Australia other than the countries and regions. Australia is also a sports power, is the world's various organized sporting events year round.