Atomic time is constant, but the Earth’s rotation is gradually slowing down by around two thousandths of a second per day.
原子时间是恒定的,但是地球的自转速度每天大约会下降千分之二秒。
Leap seconds are therefore essential to ensuring civil time does not drift away from time based on the Earth's spin. If not corrected, such a drift would eventually result in clocks showing the middle of the day occurring at night.
所以,闰秒在保证民用时和自转时 Vocabulary
leap second: 闰秒
trading floor: 交易所
Earth's rotation: 地球自转
jittery: 紧张不安的
tinker with: 鼓捣;粗修;胡乱地修补
sporadically: 偶发地,零星地
synchronization: 同步;同时性
glitch: 小过失,差错
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