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来源:雅诚德英语网
Two of Saturn's 48 known moons are barely visible in this picture of the ringed planet.
目前已知,土星有48个卫星。其中的两个在此环形星球的照片上依稀可见。
Two of Saturn's 48 known moons are barely visible in this picture of the ringed planet.
目前已知,土星有48个卫星。其中的两个在此环形星球的照片上依稀可见。