经过周三闰秒之后，全世界的高技术原子钟将再次与地球自转保持同步。
Wednesday's extra second will bring the world's high-tech atomic clocks back into sync with time as defined by Earth's rotation.
当今世界，时间在很大程度上是由提供宇宙同步时间的原子钟来监测。
Around the world, time is now monitored by highly reliable atomic clocks that are coordinated to produce a universal time standard.
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