Snowball Earth or Mud-ball Earth?
“雪球地球”还是“泥球地球”？
They called their hypothesis “Snowball Earth.
他们将该假说称作“地雪球”。
If it wasn't for snowball Earth we may not be here today.
如果没有冰川期的地球我们可能出现在今天。
This leads to a further reduction in temperature, creating more ice and possibly a runaway, 'snowball earth' scenario.
这将导致温度进一步降低，产生更多结冰并可能出现失去控制的“雪球地球”情景。
The extreme climate arisen from "snowball Earth" may promote evolution of life and trigger the "Cambrian Explosion".
“雪球地球”的极端气候环境变化，促进了生命的演化，造成了寒武纪生物大爆发。
Global glaciations took place in the earth in Neoproterozoic, which are called the "Snowball earth" event by some scholars.
在新元古代晚期地球上曾发生过全球性的冰川作用，一些学者称之为“雪球”事件。
Had Earth ever been completely covered by snow and ice and become a giant "snowball Earth" during the Neoproterozoic about 600 ~ 700 million years before?
在大约6 ~ 7亿年前的新元古代时期，地球是否曾经被冰雪完全覆盖而成为了一个“冰雪地球”？
The early stages of the Huronian, from 2.4 to 2.3 billion years ago, seem to have been particularly severe, with the entire planet frozen over in the first "snowball Earth".
Huronian冰河期的早期，也就是从24亿到23亿年前，似乎特别寒冷，整个地球第一次冰冻起来。
There's some evidence that Earth became a snowball at times during the big freezes, but researchers are still trying to work out exactly what happened.
有证据显示，地球在大冰冻期不时会成为雪球，但研究人员仍不了解究竟发生了什么。
For instance, eruptions during the snowball-Earth period are thought to have added sulfur particles to the atmosphere, blocking sunlight and cooling the planet.
比如，在“雪球地球”时期火山爆发使得空气中增加了硫粒子，它阻挡了太阳光线，使地球冷却。
This is the first snow of this winter, the earth welcome winter wear white clothes, we make a snowman, snowball fights at home.
这是今年冬天的第一场大雪，大地穿上白色的衣服来迎接冬天，我们在家里堆雪人、打雪仗。
This is the first snow of this winter, the earth welcome winter wear white clothes, we make a snowman, snowball fights at home.
这是今年冬天的第一场大雪，大地穿上白色的衣服来迎接冬天，我们在家里堆雪人、打雪仗。
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