the largest and southernmost of the Mariana Islands, administered as an unincorporated territory of the US; pop. 178,400 (est. 2009); languages, English (official), Austronesian languages; capital, Agaña. Guam was ceded to the US by Spain in 1898.
关岛(马里亚纳那群岛中最大也是最南端的岛屿,系美国的未合并领土,2009年估计人口178,400,语言为英语[官方语言] 和南岛语族语言,首府阿加尼亚;1898年由西班牙割让给美国)。