noun🔗Share流星物質A relatively small (sand- to boulder-sized) fragment of debris in a star system that produces a meteor when it hits the atmosphere"Astronomers study meteoroids in space to better understand where they come from and how they might eventually become meteors in our atmosphere. "天文学者は、流星物質がどこから来て、最終的にどのようにして大気中の流星になるのかをよりよく理解するために、宇宙で流星物質を研究しています。astronomyspacescienceChat with AIVocabulary GamePractice Reading
