澳大拉西亚

例句：

1. 1.Australia is a country in the southern hemisphere.
   澳大利亚是一个位于南半球的国家。
2. 2.The Australian government has been criticized for its handling of the refugee crisis.
   澳大利亚政府因处理难民危机的方式受到批评。
3. 3.I've always wanted to visit Australia and see the Great Barrier Reef.
   我一直想去澳大利亚看看大堡礁。