Once I asked a roomful of supper guests who, if anyone, felt any strong pull to any certain spot on the face of the earth.
曾经我问一屋子共进晚餐的客人们,有谁,感觉到被地球表面上的某个地方强烈的牵引着。
Lockheed's plan involves using the combined gravity of the Earth and the Moon to ensure that its craft hovers on the same spot, within sight of both planets.
洛克希德公司的计划中包括利用地球和月球引力相结合,以保证两个星球看到的飞行器是在同一个点上。
The monster spot came into view of Earth-bound telescopes last week.
上星期,人们用地面望远镜观测到了这一太阳黑子群。
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