Since 1972,27 leap seconds have been added to keep Earth in sync with the more precise atomic wobbles.

自 1972 年以来，增加了 27 个闰秒，以使地球与更精确的原子摆动保持同步。

Except of course for the occasional leap second which occasionally turns the last minute of the year into a 61-second minute.

当然，除了偶尔的闰秒，它偶尔会把一年的最后一分钟变成 61 秒。

And when it does we'll just keep adding leap seconds to keep things balanced.

当它发生时，我们将继续添加闰秒以保持平衡。

Also, one full day on Earth will have increased by one full second requiring a leap second to be added to every day.

同样，地球上的一整天将增加整整一秒，这就需要在每一天的基础上增加一闰秒。

Studying the Earth's rotation and then subtracting or adding a leap second to these clocks can ensure they remain aligned and keep us on time.

研究地球自转，然后在这些时钟上减去或增加一个闰秒，可以确保它们与地球转动保持一致，让我们的时间准确。