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1·But the leap second is a newcomer.

不过闰秒是个新事物。

2·Enjoy New Year's Eve's leap second.

那就好好享受除夕夜的闰秒吧。

3·The next leap second comes at the end of this year.

下一次的闰秒将出现在今年末。

4·Britain, for example, has said that the leap second should stay.

举个例子，英国就表示闰秒应该保留。

5·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。

6·This year, the world’s timekeepers will add its 24th leap second since 1972.

今年，全世界的计时员将自1972年以来第二十四次增加闰秒。

7·This year, the world's timekeepers will add its 24th leap second since 1972.

今年，全世界的计时员将自1972年以来第二十四次增加闰秒。

8·A leap second is added in order to keep UTC within 0.9 seconds of observed astronomical time.

添加闰秒是为了将UTC保持在观察到的天文时间的0.9秒范围内。

9·In practice, though, many people will be watching the television or an analogue clock, and will not notice the leap second at all.

实际上，到那时候大多数人都在看电视或盯着模拟时钟，那他们就不会注意到有闰秒了。

10·Since 1999 until recently, the two time standards have been in close enough synch to escape any need to add a leap second, NIST said.

该协会说，从1999年开始到最近几年，原子时和天文时一直处于同步状态，所以不需要增加一个闰秒。