a nation occupying the whole of the Australian continent; aboriginal tribes are thought to have migrated from southeastern Asia 20,000 years ago; first Europeans were British convicts sent there as a penal colony.

• 一个占有整个澳洲大陆的一个国家；这里的土著部落被认为是年前从东南亚移民的；英国在此建立第一块流放殖民者居住地。