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太阳使地球上的湿气不断蒸发。
The sun is constantly evaporating the earth's moisture.
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估计地球的年龄大约为46亿年。
The age of the earth is reckoned at about 4 600 million years.
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月球对地球的吸引力引起潮汐。
The moon exerts a force on the earth that causes the tides.
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这颗彗星的轨道和地球的轨道相交。
The orbit of this comet intersects the orbit of the Earth.
《柯林斯英汉双解大词典》
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地球离最近的恒星大约为4光年。
The nearest star to earth is about 4 light years away.
《牛津词典》
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她的专长是数学、地球科学和化学。
Her speciality is maths, earth science, and chemistry.
《柯林斯英汉双解大词典》
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八千万年前，地球是恐龙的天下。
Eighty million years ago, dinosaurs ruled the earth.
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空间站上的设备是从地球遥控的。
Equipment on the space station is teleoperated from Earth.
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地球上的哺乳动物起源于何时？
When did mammals appear on the earth?
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火星自转一周的时间比地球长。
Mars takes longer to revolve on its axis than the earth.
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宇宙飞船进入地球大气层时被烧毁。
The spacecraft burned up as it entered the earth's atmosphere.
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地球绕太阳一周要一年的时间。
The earth takes a year to orbit the sun.
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臭氧是地球防止紫外线辐射的屏障。
Ozone is the earth's barrier against ultra-violet radiation.
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人们曾经认为太阳绕着地球转。
It was once thought that the sun travelled around the earth.
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地球上森林覆盖的总面积正在减少。
The total forest cover of the earth is decreasing.
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地球的周长大约为25 000英里。
The earth is almost 25 000 miles in circumference.
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赤道是一条假想的环绕地球腰部的线。
The equator is an imaginary line around the middle of the earth.
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水覆盖了地球表面的大部分。
Water covers a large proportion of the earth's surface.
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古人认为地球漂浮在水里。
The ancients conceived the earth as afloat in water.
《柯林斯英汉双解大词典》
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地球环绕自身的轴心转动。
The earth revolves on its axis.
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人们曾经认为地球是平的。
People used to think the earth was flat.
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人们一度认为地球是平的。
People used to believe (that) the earth was flat.
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这种材料可以吸收地球向外辐射的能量。
The material can absorb outward-going radiation from the earth.
《柯林斯英汉双解大词典》
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我们不太确定这颗彗星是否会错过地球。
We were not altogether sure that the comet would miss the Earth.
《柯林斯英汉双解大词典》
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一个俄罗斯太空舱目前正环绕地球飞行。
A Russian space capsule is currently orbiting the Earth.
《柯林斯英汉双解大词典》
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臭氧层保护地球不受太阳紫外线的辐射。
The ozone layer shields the earth from the sun's ultraviolet rays.
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地球沿椭圆形轨道运动。
The Earth orbits in an ellipse.
《柯林斯英汉双解大词典》
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她丈夫曾教过地球科学。
Her husband taught Earth sciences.
《柯林斯英汉双解大词典》
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人们对人造卫星送回地球的图片叹为观止。
People were awestruck by the pictures the satellite sent back to earth.
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生物多样性是里约地球峰会上的时髦用语。
Biodiversity was the buzzword of the Rio Earth Summit.
《柯林斯英汉双解大词典》