It will travel around the Earth at a height of 300 km.
它将在300千米的高度绕地球运行。
地球是圆的吗？
Saving water is a duty, green earth a better place.
节约用水是职责，绿色地球更美好。
Dinosaurs lived on the Earth a long, long time a ago.
很久很久以前，恐龙在地球上生存。
It takes the earth a year to go all way round the sun.
地球绕着太阳转一圈的时间是一年。
The whole earth a point in space - and most of it uninhabited .
整个地球在空间中是一个点—绝大部分空间无人居住。
The satellite transmitted to the earth a few high-resolution photos of the moon.
卫星传回地球几张高清晰的月球照片。
The moon is a satellite of earth.
月球是地球的卫星。
A new satellite has been put into orbit around the earth.
一颗新的人造卫星被送上了环绕地球的轨道。
Because the earth spins, it is not a perfect sphere.
因为地球旋转，所以它不是个完完全全的球体。
Help us build a base on the earth.
帮我们在地球上建立一个基地。
Are you a friend of the earth?
你是地球的朋友吗？
The earth takes a year to orbit the sun.
地球绕太阳一周要一年的时间。
The moon exerts a force on the earth.
月球对地球有引力。
After a week at sea, it was good to feel the earth beneath our feet again.
出海一周后，重新踏上陆地感到很愉快。
The earth surface of the courtyard extended into a kind of rudimentary kitchen.
院子的泥土地面延伸进一间类似简易厨房的地方。
The island is truly a heaven on earth.
那个岛堪称人间天堂。
There is an asteroid on a collision course with the Earth.
有个小行星正处于可能与地球发生碰撞的航向上。
The book is a friendly, down-to-earth introduction to physics.
这是一本简明、实用的物理学入门书。
A Christmas wreath exclaiming PEACE ON EARTH hangs on the restaurant door.
一个写着“世界和平”的圣诞花环悬挂在饭店的门上。
A Russian space capsule is currently orbiting the Earth.
一个俄罗斯太空舱目前正环绕地球飞行。
The earth looks like a big blue marble.
地球看上去就像一个巨大的蓝色玻璃球。
And the earth replies all night, like a deep drum.
大地整夜回响，像深沉的鼓声。
It turned out to be a spotty globe just like the earth.
原来那是一个像地球一样的斑点球体。
Meanwhile, a pretty princess from heaven secretly came to the earth to find happiness.
与此同时，一位来自天堂的美丽公主偷偷来到地球寻找幸福。
He can dig a hole and hide in the ground, and then the earth can protect him.
他可以挖一个洞，藏在地里，然后大地可以保护他。
Mother she says that's th' worst thing on earth for a child.
妈妈说，这对一个孩子来说是世界上最糟糕的事情。
Mother she says that's th' worst thing on earth for a child.
妈妈说，这对一个孩子来说是世界上最糟糕的事情。
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