求翻译：为什么地球总是围绕太阳运转，而不飞向寒冷的太空呢?太阳的引力回答了这个问题．地球总想离开太阳直线运行，但是太阳总是把它往回拉．因此它始终围绕着大阳不停地运转。是什么意思？

Why the earth is always around the sun, not toward the cold space? The sun's gravitational answered this question. Earth always want to leave the sun straight line, but the sun always pull it back. Therefore, it is always around the sun kept running.

Why does the earth revolved around the sun, and not to fly to the cold of space? This question is answered in the sun's gravitational force always want to leave the sun earth straight run, but the sun always put it back, so it has always revolved around the sun operating ceaselessly.

Why does the Earth always revolve the sun to revolve, but does not fly to the cold outer space? Sun's attraction answered this question. The Earth always wants to leave the solar straight line movement, but the sun always pulls its round trip. Therefore it revolves positive greatly not to stop throu

Why always the Earth goes round the Sun, rather than flying into the cold space? solar gravitational answer to this problem. Earth always try to leave the Sun in straight lines, but the sun always put it back. Therefore it has always revolved around the Sun to be constantly running.

But I actually do not line a little more than hello