radio

名词 radio:

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

动词 radio:

1. transmit messages via radio waves

形容词 radio:

1. indicating radiation or radioactivity

1. I'm afraid this old radio is beyond repair.
   恐怕这台旧收音机不能修了。
2. The people next door play their radio from morning till night.
   邻居从早到晚开着收音机。
3. I must get the radio fixed.
   我必须找人把收音机修理好。
4. Air traffic controllers were in radio contact with the aircraft.
   空中交通调度员通过无线电和飞机保持联络。
5. He asked me to turn on the radio for him.
   他让我替他打开收音机。
6. I heard the news on the radio.
   我从广播中听到了这件事。

ra.di.o

n.（名词）
【复数】 ra.di.os 缩写 rad.
The wireless transmission through space of electromagnetic waves in the approximate frequency range from 0 kilohertz to 300,000 megahertz.
无线电：电磁波以约0千赫至300,000兆赫通过空间的无线传送
Communication of audible signals encoded in electromagnetic waves.
无线通讯：以电磁波密码进行的可听信号的联络
Transmission of programs for the public by radio broadcast.
无线电广播：通过无线电广播向公众传送节目

An apparatus used to transmit radio signals; a transmitter.
发报器：用来传送无线电信号的仪器；发报机
An apparatus used to receive radio signals; a receiver.
接收器：用于接收无线电信号的仪器；收报机
A complex of equipment capable of transmitting and receiving radio signals.
无线收发装置：能够传送和接收无线电信号的一套设备

A station for radio transmitting.
无线电台：无线电传送站
A radio broadcasting organization or network of affiliated organizations.
广播电台：无线电广播组织或联合组织的网络
The radio broadcasting industry.
无线电广播业
A message sent by radio.
用无线电传送的信息
n.attributive.（定语名词）
Often used to modify another noun:
经常用于修饰另一个名词：
例句：
radio stations; radio programs.
无线电台；无线电节目

v.（动词）
ra.di.oed,ra.di.o.ing,ra.di.os
v.tr.（及物动词）
To transmit by radio:
通过无线电传送：
例句：
radio a message to headquarters.
用无线电向总部传送一条信息

To transmit a message to by radio:
发送无线电：用无线电向…传送信息：
例句：
radioed the spacecraft.
用无线电向飞机传送信息

v.intr.（不及物动词）
To transmit messages or a message by radio:
用无线电传送信息：
例句：
a ship radioing for help.
一条船发出无线电求救信号

来源：
Short for radiotelegraphy
radiotelegraphy的简写