an apparatus for receiving waves
the station that goes in for the radio broadcasting industry
the sending or receiving of sounds through the air by electrical waves
send a message by radio
"he radioed for help"
In radio, the feed-back coil of an oscillator is sometimes called a tickler.
出自： A. L. Albert
They..sent a message by radio.
The police radioed for assistance.
误 I heard it in the radio.
误 I heard it through the radio.
误 I heard it from the radio.
正 I heard it on〔over〕 the radio.
析 表示“从收音机中听到…”可说hear sth on〔over〕 the radio,不说hear sth through〔in,from〕 the radio。
误 We heard the news on radio.
正 We heard the news on the radio.
析 当radio泛指广播或无线电时,前面不用冠词,但在listen to the radio(听广播), on〔over,upon〕 the radio(通过无线电广播), turn on (off)the radio(开关收音机)等词组里, radio前均应带定冠词the。
误 He sent a message by the radio.
正 He sent a message by radio.
误 The news was broadcast worldwide by the radio.
正 The news was broadcast worldwide by radio.
析 by radio指一种动作行为的方式, radio前不加定冠词。