| 词汇 | radio |
| 词根词缀 | 词源： "wireless transmission with radio waves," 1907, abstracted from earlier combinations such as radiophone (1881) and radio-telegraphy (1898), from radio-, comb. form of radiation (q.v.). Use for "radio receiver" is first attested 1917; sense of "sound broadcasting as a medium" is from 1922. Wireless remained more widespread until World War II, when military preference for radio turned the tables. The verb is attested from 1919. 词根记忆： n. 收音机;无线电报,无线电话v.无线电通讯My sister insists consistently on persistent resistance to transistor radios.妹妹一贯坚决主张持久抵制晶体管收音机. |
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