After ruling out nearby sources of radio waves, they concluded that their own hiss also comes from beyond the Milky Way and thus constitutes a cosmic radio background.
排除了无线电波来自附近的可能性之后，他们得出结论：他们自己发现的嘶嘶声同样来自银河之外，因此这种嘶嘶声构成了宇宙的无线电背景。
China plans to take over from Britain in ruling the Olympic waves.
中国打算接替英国成为海上霸主弄潮新秀。
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