As geologists, we examine layers of sediment on the Earth' s surface to approximate the dates of past geologic time periods.

作为地质学家，我们研究地球表面的沉积层以估算过去地质时期的年代。

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The moon's gravity is a sixth as strong as the earth's, so Chang'e-4's experiment was a test: would the earth plants know which way was up on the moon?

月球的引力是地球引力的六分之一，所以嫦娥四号的实验是一个测试：地球上的植物能知道月球上哪个是向上的方向吗？

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The mist is like the earth "s desire."

浓雾仿佛是大地的愿望。

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The atmosphere is about twenty-percent oxygen and eighty percent nitrogen from Earth's surface to where space begins at one-hundred-twenty kilometers up.

VOA: special.2011.04.06

He's able to justify the ways of God to men here on the physical - on this intimately bodily earth.

弥尔顿得以从这具体的物质的人间的角度,证明了上帝待人之法。

耶鲁公开课 - 弥尔顿课程节选

It's always Milton's duty - this is the reason that he was put on this earth: to liberate a people from any such constraining customs.

弥尔顿的使命是,-他是为此才诞于世上：,将英格兰民族从所有抑制人的传统中解放出来。

耶鲁公开课 - 弥尔顿课程节选

Although they are complicated and expensive, Iridium's low-earth orbiting satellites have worked pretty much as billed.

ECONOMIST: Is Iridium about to fall to earth?

The impetus behind the president's space control veto, and the Air Force's scorched-earth reaction to it, appears to be political.

CENTERFORSECURITYPOLICY: Clinton Policies Would Disarm U.S. Space Capabilit

Ohio is another key state where the facts contradict Romney's scorched-earth message.

CNN: Romney's amazing hypocrisy