One day God was looking down on Earth, and saw all of the mischievous behavior that was going on.

一天，上帝正在往下看地球，他看到了所有不好的行为正在继续着。

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The satellites make satellite navigation possible. But they also reveal that time runs faster in space than it does down on Earth.

于此同时，发现时间在太空中比在地球上更快。

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Once you are in this geostationary orbit right over the tower, just lower your carbon nanotube cable down from the satellite, tether it to the tower here on Earth.

一旦你来到这个塔旁的地球静止轨道，只需把碳纳米管电缆从卫星上放低然后将其系在位于地球的塔端。

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Someone with both feet on the ground may not be as open and easy to deal with as someone who is down to earth.

VOA: special.2009.03.08

The person who is down to earth usually has both feet on the ground.

VOA: special.2009.03.08

When we have both our feet firmly on the ground, and when we are down to earth we do not have our noses in the air.

VOA: special.2009.03.08

It is designed to detect showers of billions of secondary particles created when cosmic ray particles rain down on the Earth.

BBC: Black hole: A source of 'cosmic bullets'?

The sun beats down on the earth, the earth flourishes.

NEWYORKER: March

In a sense he has separated the quasi-mystical divine function of God's representative on Earth from the very down-to-earth job of administering the world's oldest international organisation, one which has survived two millennia of schisms, would-be reformers and wars, as well as territorial, family and political ambitions.

BBC: Pope Benedict: Will retirement seal his legacy?