meteoroid
英[\'mi:tjərɔɪd]
美[\'mitɪərˌɔɪd]
基本释义
- n.
- 流星体
实用例句
The cometary ejection play a crucial role in formation and evolution of the meteoroid stream.
彗星的喷发速度在流星群的演化过程中起着重要作用.
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英英释义
Noun
1. (astronomy) any of the small solid extraterrestrial bodies that hits the earth's atmosphere