When suddenly you come across death, the very earth underneath you slips away.

当你突然遇到死的时候，你脚下面的真正的地离你而去。

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He scooped out a little the earth, being careful not to disturb anything that was underneath.

他挖出一点土，小心翼翼地不去触动底下的任何东西。

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He scooped out a little of the earth, being careful not to disturb anything that was underneath.

他铲起了一点土，非常小心，不去扰乱底下的任何东西。

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Rather, the system takes advantage of the fact that the earth underneath Fort Knox (like many places across the country) maintains a more or less constant temperature of 57 degrees year around.

FORBES: Fort Knox's Buried Treasure

'Father says the earth got too hot underneath, like you do in bed sometimes, so it just hunched up its shoulders, and the sea had to slip off, like the blankets do off us, and the shoulder was left sticking out, and turned into dry land.

NPR: Excerpt: 'Five Children and It'

For instance, when you do combustion studies, flames on Earth burn in a teardrop fashion because the air comes in from underneath it and feeds the flame, but we can't do that here since the air doesn't know where up is, there's no convection.

WHITEHOUSE: President Obama's call to the International Space Station