单词	Seyfert galaxy
释义	Seyfert galaxy noun Sey·​fert galaxy ˈsē-fərt-   also  ˈsī- : any of a class of spiral galaxies that have small compact bright nuclei characterized by variability in light intensity, emission of radio waves, and spectra called also Seyfert Word History Etymology Carl K. Seyfert †1960 American astronomer First Known Use 1959, in the meaning defined above
随便看	retonation wave retook retool retooled retooling retools retorn retorsio facti retorsion retorsiones facti retorsions retort retort pouch retort stand retorted retorter retorters retorting retortion retortions retorts retoss retotaled retotaling retotalled

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