TVs and Radios

TVs are more useful than radios. From TV you can see and hear what is happening in the world. However, radios are not disappearing. They are still with us. And the number of listeners is becoming larger. Do you know why?

One reason for this is the invention of the transistor. A transistor radio can be very small. It is very easy to be carried. Besides, radio broadcasts are better for blind people. Many old people don’t have good eyesight. They can’t watch TV, but can listen to music or news over the radio. What’s more, a radio is cheaper than a TV set.

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電視及收音機(jī)

電視比收音機(jī)有用。你可以從電視看到和聽到在世界上發(fā)生的。然而，收音機(jī)都沒有消失。他們?nèi)匀缓臀覀冊谝黄?。與聽眾人數(shù)越來越多。你知道為什么嗎？

其中一個原因是晶體管的發(fā)明。一個晶體管收音機(jī)可以非常小。這是很容易被通過。此外，無線電廣播是盲人更好。許多老人根本不具備良好的視力。他們可以不看電視，但可以在電臺收聽音樂或新聞。更重要的是，一個比一個收音機(jī)電視機(jī)便宜。