同义词: focus on center on revolve around concentrate on center
以上来源于: WordNet
Planets revolve about the sun and rotate on their axis.
八大行星都围绕太阳运转,每个行星也绕着自转轴自转。
The stars of the galaxy must revolve about its center if the galaxy is not to gradually collapse.
如果星系不致于逐渐坍陷的话,星系中的恒星必须绕其中心旋转。
Just as the planets revolve about the sun, planetary electrons are thought of as revolving about the nucleus.
正像行星围绕太阳转一样,行星般的电子被认为是围着原子核转的。
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