noun🔗Share新星Any sudden brightening of a previously inconspicuous star.""Astronomers were excited to observe a nova appear suddenly in the night sky, where previously there had only been a faint star." "天文学者たちは、以前はかすかな星しかなかった夜空に、突然新星が現れるのを観察して興奮した。astronomyspacesciencephenomenaChat with AIVocabulary GamePractice Reading
