英语问题(翻译)

翻译：

Humanity also has been obsessed with trying to capture the meaning of time. Einstein used a definition of time for experimental purposes, as that which is measured by a clock. Thus time and time's relativity are measurable by any hour glass, alarm clock, or atomic clock that can measure a billionth of a second.

人类也已痴迷试图捕捉时间的意义。爱因斯坦用一个时间定义为实验目的，因为这是衡量一个时钟。因此，时间和时间的相关性是衡量任何小时玻璃，闹钟，或原子钟，可以测量十亿分之一秒。