These contradictory versions arise because rulers and clocks—the things that mark time and space—are not the same for different observers.

之所以有这样矛盾的观点，这是因为“标尺”和“时钟”——它们标志着事件所在的时间和空间，它们对于不同的观察者来说是不一样的。

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Their departure leaves three space station residents, as well as Endeavour's six-man crew commanded by Mark Kelly, husband of wound Rep. Gabrielle Giffords.

他们离开了，留下了三个空间站居民，以及由马克·凯利（受伤众议员加布里埃尔·吉福兹的丈夫）指挥的奋进号的六名成员。

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Jackson Pollock, Barnett Newman and Mark Rothko painted on such a scale and with such an enriched idea of space that they left the traditional idea of painting behind.

杰克逊·波洛克（Jackson Pollock），巴尼特·纽曼（Barnett Newman）和马克·罗斯科（Mark Rothko）重绘了尺度，并且用这样的尺度拓展了空间概念，他们将传统的油画理论抛之脑后。

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Mark Nappi from United Space Alliance, NASA's largest shuttle contractor, says job cuts at the Kennedy Space Center could be just the beginning.

VOA: standard.2010.03.18

In 1992, the U.S. space shuttle Endeavour took off with a crew that included Mark Lee and Jan Davis, the first married couple in space.

CNN: Friday,

Phillips could have scored soon after the half-hour mark when, having cleverly engineered space, he shot inches wide.

BBC: fa-cup

Mr. Giesea said Mark Madoff had been using office space in Manhattan in recent months and pitching the idea to various potential partners.

WSJ: Mark Madoff and the Fraud's Burden