单词	dark matter
释义	dark matterˈdark ˌmatter noun [uncountable] technical a type of matter that scientists think may exist. It cannot be seen but seems to affect the movements of stars
随便看	feudalistic fever fever blister fevered feverish feverishly few fey Feynman, Richard Phillips fez ff FHM FIA fiancé fiancée Fianna Fáil fiasco Fiat fiat fib fibber fiber fiberboard fiberglass fibre

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