名詞 radio:

1. medium for communication
   同義詞：radiocommunication, wireless
2. an electronic receiver that detects and demodulates and amplifies transmitted signals
   同義詞：radio receiver, receiving set, radio set, tuner, wireless
3. a communication system based on broadcasting electromagnetic waves
   同義詞：wireless

動詞 radio:

1. transmit messages via radio waves

形容詞 radio:

1. indicating radiation or radioactivity

1. I'm afraid this old radio is beyond repair.
   恐怕這臺舊收音機不能修了。
2. The people next door play their radio from morning till night.
   鄰居從早到晚開著收音機。
3. I must get the radio fixed.
   我必須找人把收音機修理好。
4. Air traffic controllers were in radio contact with the aircraft.
   空中交通調(diào)度員通過無線電和飛機保持聯(lián)絡。
5. He asked me to turn on the radio for him.
   他讓我替他打開收音機。
6. I heard the news on the radio.
   我從廣播中聽到了這件事。

ra.di.o

n.（名詞）
【復數(shù)】 ra.di.os 縮寫 rad.
The wireless transmission through space of electromagnetic waves in the approximate frequency range from 0 kilohertz to 300,000 megahertz.
無線電：電磁波以約0千赫至300,000兆赫通過空間的無線傳送
Communication of audible signals encoded in electromagnetic waves.
無線通訊：以電磁波密碼進行的可聽信號的聯(lián)絡
Transmission of programs for the public by radio broadcast.
無線電廣播：通過無線電廣播向公眾傳送節(jié)目

An apparatus used to transmit radio signals; a transmitter.
發(fā)報器：用來傳送無線電信號的儀器；發(fā)報機
An apparatus used to receive radio signals; a receiver.
接收器：用于接收無線電信號的儀器；收報機
A complex of equipment capable of transmitting and receiving radio signals.
無線收發(fā)裝置：能夠傳送和接收無線電信號的一套設備

A station for radio transmitting.
無線電臺：無線電傳送站
A radio broadcasting organization or network of affiliated organizations.
廣播電臺：無線電廣播組織或聯(lián)合組織的網(wǎng)絡
The radio broadcasting industry.
無線電廣播業(yè)
A message sent by radio.
用無線電傳送的信息
n.attributive.（定語名詞）
Often used to modify another noun:
經(jīng)常用于修飾另一個名詞：
例句：
radio stations; radio programs.
無線電臺；無線電節(jié)目

v.（動詞）
ra.di.oed,ra.di.o.ing,ra.di.os
v.tr.（及物動詞）
To transmit by radio:
通過無線電傳送：
例句：
radio a message to headquarters.
用無線電向總部傳送一條信息

To transmit a message to by radio:
發(fā)送無線電：用無線電向…傳送信息：
例句：
radioed the spacecraft.
用無線電向飛機傳送信息

v.intr.（不及物動詞）
To transmit messages or a message by radio:
用無線電傳送信息：
例句：
a ship radioing for help.
一條船發(fā)出無線電求救信號

來源：
Short for radiotelegraphy
radiotelegraphy的簡寫