体它不仅能发送消息，它还能保持两个物体之间的距离。
This includes not only sending messages for events, but also to keep the objects from passing through each other.
l 牛顿指出，两个物体距离越远、质量越小，他们之间的引力也越弱。
The further apart and the lighter two objects are, the weaker is the pull of gravity between them.
它的大小和两个物体似的质量的乘积成正 比，和两者之间的距离的平凡成反 比。
Distance ordinariness between direct proportion, and both becomes mass like its size and two objects product inverse ratio.
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