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1. Oxford Dictionary

   comet

   • IPA[ˈkɒmɪt]

   英式

   • n.
     a celestial object consisting of a nucleus of ice and dust and, when near the sun, a ‘tail’ of gas and dust particles pointing away from the sun.

   • noun: comet, plural noun: comets

2. • 相關詞

   Halley's comet

   • ph.
     a periodical comet with an orbital period of about 76 years, its reappearance in 1758–9 having ...

   Oxford Dictionary

   Halley's comet

   • ph.
     a periodical comet with an orbital period of about 76 years, its reappearance in 1758–59 having ...

   Oxford American Dictionary

3. • 更多解釋

   comet

   • IPA[ˈkämət]

   美式

   • n.
     a celestial object consisting of a nucleus of ice and dust and, when near the sun, a “tail” of ...

   Oxford American Dictionary