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ar-的英文翻譯是什么意思，詞典釋義與在線(xiàn)翻譯：
英英釋義
名詞 ar:
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a colorless and odorless inert gas; one of the six inert gases; comprises approximately 1%25 of the earth's atmosphere
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a unit of surface area equal to 100 square meters
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a state in south central United States; one of the Confederate states during the American Civil War
