Word · CEFR B2 · Frequency #5111
broadcast
播送；播出；广播
核心释义
To send out a program, message, or signal by radio, television, or other electronic means; to transmit over a wide area.
- 1.
通过无线电波或电子手段传输信息或信号。
To transmit a message or signal through radio waves or electronic means.
- 2.
在广泛区域内传输信息。
To transmit a message over a wide area.
- 3.
作为表演者、主持人或演讲者出现在广播节目中。
To appear as a performer, presenter, or speaker in a broadcast programme.
- 4.
通过无线电波(如广播或电视)播送
broadcast over the airwaves, as in radio or television
上（广播/电视）节目；在节目中表演（或主持）；通过无线电波或电子手段传输信息或信号。；在广泛区域内传输信息。；作为表演者、主持人或演讲者出现在广播节目中。；通过无线电波(如广播或电视)播送
用法In use
The radio station broadcasts news every hour.
用法提示：动词broadcasts是第三人称单数形式，表示“播送”。
They are broadcasting the football match live.
用法提示：broadcasting是现在分词，表示正在进行中的播送。
The president broadcast a message to the nation last night.
用法提示：broadcast是过去式，表示过去发生的播送动作。
broadcast sth
及物用法，后面直接跟播送的内容，如新闻、节目、比赛或信号。
The station broadcasts the news every hour.
这家电台每小时播送一次新闻。
be broadcast live
常用被动语态；live 表示“现场直播”，后面常接 on television、on radio 等。
The match was broadcast live around the world.
相关词与表达Connections
搭配Collocations
- broadcast live
- 现场直播；实况播出
- The ceremony was broadcast live to millions of people around the world.这场仪式向全球数百万人现场直播。
- broadcast a signal
- 传输信号；播送信号
- The station broadcasts a digital signal across the whole region.这家电台向整个地区播送数字信号。
- broadcast over the airwaves
- 通过无线电波播出
- The interview was broadcast over the airwaves on several stations.这段采访通过多个电台的无线电波播出。
- broadcast on television
- 在电视上播出
- The match will be broadcast on television tonight.这场比赛今晚将在电视上播出。
- broadcast to millions
学习提示Learner notes
记忆技巧Memory Tip
联想记忆：broad（宽广）+ cast（抛撒），把声音或画面抛撒到宽广的范围——广播。
语境与语域Context & Register
语域：neutral 常见场景：新闻与媒体、科技与通信、日常交流 通常用于媒体传播（如广播、电视、网络直播），也可用于正式通知或日常比喻；语气中性，正式和非正式场合都比较常见。
发音与拼写Pronunciation & Spelling
All listed words share the final sound sequence /æst/; -cast words add /k/ before it. Cast, forecast, and podcast are exact spelling-and-sound matches: they end in -cast and are pronounced /kæst/, just like the final syllable of broadcast /ˈbɹɑdkæst/. Last, fast, and past also share the /æst/ ending but use the spelling -ast. Be careful with lookalikes like breakfast /ˈbrɛkfəst/: although it starts with br- and ends with -st, its final syllable is /fəst/ with a schwa, so it does not match.
高价值词汇High-value vocabulary
该词属于 Oxford 核心词汇，值得优先掌握常见搭配和句型。
用法优先级Usage priority
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.