n. 无线电, 收音机, 无线电报, 无线电广播, 无线电台 v. 用无线电发送
In the 1930s, parents worried that radio was gaining "an irresistible hold of their children".
四级 · CET-4 2023年12月 第3套 · Part III 第36–45题
They gather "data exhaust" left by employees' email and instant messaging apps, and use name badges equipped with radio-frequency identification devices and microphones.
六级 · CET-6 2023年6月 第2套 · Part III 第46–50题
The telegraph, the telephone, and radio were the obvious predecessors of the Internet, iPods, and mobile phones.
六级 · CET-6 2021年6月 第1套 · Part III 第36–45题
In 1924 he convinced the British government to encircle the world with a chain of wireless stations using the latest technology that he had devised, shortwave radio.
六级 · CET-6 2021年6月 第1套 · Part III 第36–45题
There are some who say Marconi lost his edge when commercial broadcasting came along; he didn't see that radio could or should be used to frivolous(无聊的) ends.
六级 · CET-6 2021年6月 第1套 · Part III 第36–45题