Most antennas are made in the shape of a dish to collect and reflect the radio waves to the sub reflector, in the same way as a curved mirror focuses visible light to one point.
大多数天线被制成碟形，用以收集和反射无线电波至亚反射器，就像曲面镜将可见光聚焦于一点一样。
If you can get on a live radio show, you can actually shape the news because you won't be edited as you would be on TV or in the newspaper.
如果你能够争取到一个直播的广播节目，事实上你可以直接塑造这个新闻，因为你不必去通过编辑的剪辑当你想要在电视或者报上发表的时候。
She was the BBC's first director of talks and helped shape the programmes we listen to today, founding radio journalism and the notion of quality radio.
她是BBC谈话节目的第一任主管，通过建立广播新闻和质量广播的概念，帮助我们今天听到的节目定型。
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