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triple (course) surface treatment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 triple:
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a base hit at which the batter stops safely at third base
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a set of three similar things considered as a unit
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a quantity that is three times as great as another
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increase threefold
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hit a three-base hit
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having three units or components or elements
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three times as great or many
