deep bay; cove; harbor

China-Australia (relations)

see 南澳縣|南澳县[Nan2 ao4 Xian4]; South Australia (abbr. for 南澳大利亞州|南澳大利亚州[Nan2 Ao4 da4 li4 ya4 Zhou1])

Australia (slang term reflecting a perception of Australia as something of a backwater)

Hong Kong 香港[Xiang1 gang3] and Macao 澳門|澳门[Ao4 men2]