用无线电

• over the wireless
• by wireless

例句

1. 军官用无线电向士兵下达命令。
   The officer communicated his orders to the men by radio.
2. 他们用无线电跟总部联络上了。
   They made contact with headquarters by radio.
3. 他用无线电报把消息告诉我。
   He sent me the news by wireless telegraph.
4. 警察用无线电通话。
   The police talked to each other by wireless.