单词	micrometeorite
释义	micrometeorite /mʌɪkrəʊˈmiːtɪərʌɪt / noun A micrometeoroid that has entered the earth’s atmosphere.The Moon's regolith was created by the ceaseless bombardment of micrometeorites, cosmic rays and particles of solar wind breaking down rocks for billions of years.... Ask me sometime how they keep it from hazing with normal cosmic dust and micrometeorites. Some are impacts from micrometeorites coming from the birth of the Solar System, and some can be attributed to paint flakes from spacecraft or other space debris.
随便看	sightliness sightly sight-read sight-reader sight screen sightsee sightseeing sightseer sight-sing sight unseen sightworthy sigil SIGINT siglum sigma sigmate sigmoid sigmoidal sigmoid colon sigmoidoscope sigmoidoscopic sigmoidoscopy sign signable Signac, Paul

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