说那个地球的吸引力问题，“万有引力”也是错误的。
Such as that the gravitational pull of the earth, "gravity" is wrong.
物理学家牛顿发现，所有物质都有相互的吸引力，叫作万有引力或重力。
Physicists Newtonian found, all matter is a mutual attraction, called gravity or gravity.
考虑到宇宙中星系的形成过程本质也是一种聚类过程，星系之间吸引力是靠万有引力作用。
Associated with the formation of galaxies in the universe is essentially a clustering process by gravitational attraction between galaxies role.
考虑到宇宙中星系的形成过程本质也是一种聚类过程，星系之间吸引力是靠万有引力作用。
Associated with the formation of galaxies in the universe is essentially a clustering process by gravitational attraction between galaxies role.
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