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leap second英英字典_leap second剑桥英语解释_leap second柯林斯英文解释_按摩法牛津词典
按摩法牛津词典

leap second

L 开头单词

柯林斯词典

    leap second

  • 1. N a second added to or removed from a scale for reckoning time on one particular occasion, to synchronize it with another scale 閏秒

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