radio

radio
(pl. -os)

[mass noun]the transmission and reception of electromagnetic waves of radio frequency, especially those carrying sound messages
无线电，射电；无线电传送与接收
cellular phones are linked by radio rather than wires.
手机是无线而不是有线连接的。
■the activity or industry of broadcasting sound programmes to the public
无线电广播；无线电广播事业
she has written much material for radio.
她已为无线电广播创作了很多作品。
[as modifier]a radio station.
无线电（广播）台。
■radio programmes
无线电广播节目
we used to listen to a lot of radio.
我们过去常听无线电广播。
■[count noun]an apparatus for receiving such programmes
收音机；无线电接收设备
he switched the radio on.
他打开了收音机。
■[count noun]an apparatus capable of both receiving and transmitting radio messages between individuals, ships, planes, etc
（个人、轮船、飞机之间的）无线电设备；对讲机
a ship-to-shore radio.
船岸联络无线电。
■[in names]a broadcasting station or channel
广播电台（或频道）
Radio One.
第一套广播节目，广播一台。

(-oes, -oed)

[no obj.]communicate or send a message by radio
用无线电通讯（或发送信息）
the pilot radioed for help.
飞行员发无线电求救信号。
■[with obj.]communicate with (a person or place) by radio
用无线电与（人，地点）通讯
we'll radio Athens right away.
我们将马上用无线电与雅典联络。

语源

early 20th cent.: abbreviation of radio-telephony

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