| 单词 | expanding universe | 
| 释义 | expanding universe in American Englishnoun Astronomy  a representation of the universe, based on the observed redshifts of distant galaxies, in which the galaxies are assumed to be receding from each other at a speed proportional to their separation as a result of the expansion of the universeCompare  Hubble's constant,  cosmological redshift Word origin[1930–35] Examples of 'expanding universe' in a sentence | 
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