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单词	extragalactic
释义	extragalactic /ˌɛkstrəɡəˈlaktɪk / adjective Astronomy Situated, occurring, or originating outside the Milky Way galaxy: extragalactic radio sources... Hence the whole foundation of extragalactic astronomy and Big Bang theory is swept away’. It is definitely an extragalactic background. The number of these sources is consistent with the expected number of extragalactic sources in the background sky.
随便看	gang turf gangue gang-up gang war gang warfare gangway gangway-bridge gangway ladder gangway man gangway seat Gang Week gang work gang worker ganister ganja gank gannet gannetry ganoid gansey Gansu gantlet gantline gantry Gantt chart

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