重点词汇
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美国
the United States of America; USA; US; United States; America
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缩写
abbreviate; shorten; abridge; abbreviation; acronym; initialism; contraction; abbr
American abbreviation
美国
the United States of America; USA; US; United States; America
缩写
abbreviate; shorten; abridge; abbreviation; acronym; initialism; contraction; abbr