broadcast的音標為[?br??kst??d]，基本翻譯為“廣播，播放；傳播，散布”，速記技巧為：broadcast以“broad”寬廣為特征，以“cast”拋出為記憶點。

broadcast的英文詞源：

broadcast這個詞源自于古英語中的單詞“brocdaht”，意為“傳播，散布”。隨著時間的推移，這個詞逐漸演變成了現代英語中的“broadcast”。

變化形式：

broadcast可以有不同的形式變化，如第三人稱單數現在時形式為broadcasts，過去式為brokecast或broadcast，過去分詞為broadcast或broadcasts。

相關單詞：

1. telecast：電視播放

2. radio broadcast：無線電廣播

3. satellite broadcast：衛星廣播

4. cable broadcast：有線電視廣播

5. nationwide broadcast：全國性廣播

6. international broadcast：國際廣播

7. television broadcast：電視播放

8. program broadcast：節目播放

9. news broadcast：新聞廣播

10. live broadcast：現場直播

以上這些單詞都與broadcast有著密切的聯系，它們在不同的媒體和平臺上進行傳播和播放。broadcast這個詞作為核心詞，衍生出了許多與其相關的詞匯，豐富了英語詞匯庫。

常用短語：

1. broadcast news 播送新聞

2. broadcast signal 廣播信號

3. broadcast programme 廣播節目

4. broadcast advertising 廣播廣告

5. broadcast music 播放音樂

6. broadcast speech 廣播演講

7. broadcast weather report 播報天氣

例句：

1. The radio station broadcasts a variety of music every day.

2. The TV station broadcast a live news report from the disaster area.

3. The radio program is broadcast at 9 pm every night.

4. The advertisement was broadcast on all the major radio stations.

5. I enjoy listening to the smooth voice of the radio DJ as they broadcast music.

6. The weather forecast was broadcast on the radio and TV channels.

7. The signal was weak and could not be broadcast clearly.

英文小作文：

標題：The Benefits of Broadcast Media

Broadcast media, such as radio and television, have become an essential part of our daily lives. Through these platforms, we are able to receive information, news, music, and other forms of entertainment. Here are some of the benefits of broadcast media:

Firstly, broadcast media provide us with a wide range of content. From news and current affairs programs to music and sports events, broadcast media offer a diverse range of content that can cater to different tastes and interests.

Secondly, broadcast media are convenient and accessible. With the help of modern technology, we can access broadcast media on our mobile devices, computers, or through satellite or cable television services. This allows us to stay up-to-date with the latest news and events wherever we are and whenever we want.

Thirdly, broadcast media are reliable sources of information. Many broadcasters adhere to strict journalistic standards and guidelines to ensure that the content they provide is accurate and reliable. This helps us make informed decisions and stay informed about important issues that affect our lives.

Finally, broadcast media provide us with a sense of community and connection. Through radio and television programs, we can connect with others who share similar interests or concerns, forming a sense of community and support system.

In conclusion, broadcast media play an important role in our daily lives, providing us with a wide range of content that is convenient, reliable, and connective.