澳大利亚属于Oceania（大洋洲）。以下是关于澳大利亚地理位置的详细英文说明：
Australia is an island country located in the southern hemisphere of the Earth. It is the world's sixth-largest country by total area and the largest island country. Geographically, Australia is situated in the Oceania region, which is also known as Australasia. This region encompasses a vast expanse of islands and mainland areas in the Pacific and Indian Oceans.
Australia is positioned in the southeastern part of Oceania, separated from the rest of the continent of Asia by the Timor Sea to the north and the Arafura Sea to the northwestern corner. To the east, it is bordered by the Pacific Ocean, and to the west, it is adjacent to the Indian Ocean. The country's coastline stretches over 25,760 kilometers (16,070 miles), making it the longest coastline of any country in the world.
Australia is divided into six states and two territories. The states are New South Wales, Queensland, South Australia, Tasmania, Victoria, and Western Australia. The territories are the Australian Capital Territory (ACT) and the Northern Territory. The country's capital city is Canberra, which is located in the ACT.
The majority of Australia's landmass is desert or semi-arid, with a significant portion of its interior being part of the Great Arid Zone. The country's climate varies widely, with tropical regions in the north and a more temperate climate in the south. The Great Barrier Reef, one of the world's largest coral reef systems, is located off the northeastern coast of Australia, and the continent is home to a diverse range of flora and fauna, much of which is unique to the region.
