Enjoy New Year's Eve's leap second.

那就好好享受除夕夜的闰秒吧.

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But the leap second is a newcomer.

不过闰秒是个新事物.

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Deciding when leap second is the responsibility of the International Earth RotationReference Systems Service.

国际地球自转服务组织负责决定何时加减闰秒.

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The last time a leap second was added was in the dying moments of 2005.

上一次的闰秒发生在2005年的最后时刻.

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