1. Modern means of communication have enabled the travellers to reserve a plane seat or a hotel room from a long distance.
    现代通信手段使得游客可以从遥远的地方预定机座和旅馆房间。

2. "In America," said Horsnagle, "instead of golden trumpets, we have newspapers, magazines and radio stations."
    洪斯纳哥博士说，“在美国，我们有报纸、杂志和电台，而不是金喇叭。”

3. "But who owns all these newspapers, magazines and radio stations?"
    “但是谁拥有这些报纸、杂志和电台呢？”

4. Radio waves also travel at the speed of light,
    无线电波也是以光速传播的。

5. Radio and television have made it possible for advertisers to capture the attention of millions of people in this way.
    电台、电视使做广告的人可以用这种手段吸引成百万人的注意力。

6. Research shows we make up our minds about people through unspoken communication within seven seconds of meeting them.
    有研究显示，我们对他人的判断是根据我们最初遇到他们的七秒钟里所进行的无言的交流形成的。

7. Once the existence of this wave-length had been discovered, it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested.
    一旦这种波长的实际存在被发现，提出把它作为星际间唯一可辨认的广播频率就为期不远了。

8. I have a stereo radio.
    我有一个立体声录音机.

9. In the virtual classroom nearly all communication is written, so it is critical that students feel comfortable expressing themselves in writing.
    虚拟课堂的交流几乎都是书面形式。因而很重要的一点是要让学生感到书面交流并不别扭。

10. In the late 1940s, engineer Percy L. Spencer of the Raytheon Company was experimenting with high-frequency (高频率) radio waves.
    20世纪40年代后期，雷神公司的工程师珀西·L·斯潘塞正在从事高频无线电波实验。