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来源:雅诚德英语网
Supernovas in the Milky Way are the likeliest source for most of the cosmic rays reaching Earth.
银河系中的超新星最有可能是大多数宇宙射线到达地球的来源。
Supernovas in the Milky Way are the likeliest source for most of the cosmic rays reaching Earth.
银河系中的超新星最有可能是大多数宇宙射线到达地球的来源。