the largest and southernmost island in the Marianas which is administered as a territory of the United States; it was ceded by Spain to the United States in 1898
Guam的用法和樣例：
例句
用作名詞 (n.)
Guam and American Samoa are US territories. 關島和美屬薩摩亞是美國的准州。
Last night Japanese forces attacked Guam. 昨夜日本軍隊進攻關島。
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