现在人们通过电话、电报、无线电、电视及卫星进行远距离交流。
People now communicate over long distances by means of telephone, telegraph, radio, television, and satellite.
无线电通信的最新形式是卫星通信。
The most advanced form of radio communication is satellite communication.
无线电通信的最新形式是卫星通信。
The most advanced form of radio communication is satellite communication.
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