boom

/buːm/ (bre, ipa) · /buːm/ (ame, ipa) · /ˈbüm/ (ame, mw)

boom — 名詞

1. a low, powerful noise that carries a long way and often comes from something lar

1.名詞B2
釋義

轟隆聲

低沉而很響的聲音

a low, powerful noise that carries a long way and often comes from something large, empty, or explosive.

例句

A sudden boom shook the windows just after midnight.

剛過午夜,一聲突如其來的轟隆聲震動了窗戶。

boom + shake the windows

From the bay came the deep boom of a ship's horn.

海灣那頭傳來船笛低沉的轟隆聲。

the boom of + sound source

同義詞
  • bang

    a shorter, sharper noise

  • blast

    often tied to an explosion or a strong burst of air

  • rumble

    usually longer and less sudden than 'boom'

反義詞
  • silence

    complete lack of sound

  • quiet

    a low level of sound rather than a loud one

文法句型

a boom

the boom of + sound source

a boom from + place

用法筆記

Often used for a single striking noise, especially with 'of' or 'from' to show where it came from: 'the boom of the guns', 'a boom from upstairs'.

常見錯誤

We heard boom from outside.
We heard a boom from outside.
💡this sense is countable, so it normally needs an article.

2. a stretch when business, prices, or building activity go up fast and making mone

2.名詞C1
釋義

經濟榮景

景氣快速升溫的時期

a stretch when business, prices, or building activity go up fast and making money becomes easier than usual.

例句

The city grew rich during the oil boom of the 1970s.

在 1970 年代的石油榮景期間,這座城市變得很富有。

during the boom

Builders made huge profits in the housing boom last year.

去年房市榮景中,建商賺進了大筆利潤。

boom in housing/property

同義詞
  • upswing

    common in economic writing; stresses movement upward

  • expansion

    more neutral and often slower than 'boom'

  • surge

    suggests a sharp jump, often over a shorter time

反義詞
  • slump

    a period when business or prices fall

  • recession

    an economic period of decline

文法句型

a boom in + industry/price/sales

during a boom

用法筆記

Common with 'in' plus the part of the economy that is rising, such as housing, trade, exports, or tourism. Distinguish from noun 3, which is about any sharp rise or a fashion for something, not specifically the economy.

常見錯誤

There was a boom of house prices.
There was a boom in house prices.
💡the usual preposition is 'in'.
The country had boom after the war.
The country had a boom after the war.
💡use an article when you mean one period of fast economic growth.

3. a strong rise in the amount of something, or a phase when many more people sudde

3.名詞C1
釋義

熱潮;激增

數量或人氣突然上升

a strong rise in the amount of something, or a phase when many more people suddenly become interested in it.

例句

Streaming shows created a boom in true-crime podcasts.

串流影集帶起了真實犯罪 podcast 的一波熱潮。

a boom in + trend or product

After the gold medal, there was a boom in skate lessons.

拿到金牌後,滑板課程大增。

there was a boom in + activity

同義詞
  • craze

    more informal and more strongly tied to fashion

  • upsurge

    formal; focuses on a rise in amount or activity

  • wave

    good for a movement of interest that spreads through many people

反義詞
  • decline

    a fall in amount or interest

  • drop

    a decrease, often quicker or more measurable

文法句型

a boom in + activity/product/hobby

a boom in popularity

用法筆記

Usually singular. Use this sense for trends, hobbies, products, or public interest. Distinguish from noun 2, where the growth is specifically in business or the wider economy.

常見錯誤

The dance boom started after the show.
The boom in dance started after the show.
💡this sense often needs 'boom in + noun'.

4. the bar along the lower edge of a sail, moved from side to side to set the sail

4.名詞C2
釋義

帆桁

帆下方可擺動的橫桿

the bar along the lower edge of a sail, moved from side to side to set the sail at the right angle to the wind.

例句

Ravi ducked as the boom swung across the small boat.

當帆桁掃過小船上方時,Ravi 立刻低頭閃開。

the boom swung across + boat

A loose rope let the boom hit the side hard.

一條鬆掉的繩子讓帆桁重重撞上船身側面。

同義詞
  • spar

    the broader sailing term for a pole used to support a sail

  • yard

    another sail pole, but on a different part of the rig

文法句型

the boom swung across + boat

hold/lower/raise the boom

用法筆記

A sailing term. Learners most often meet it with verbs such as 'swing', 'hold', 'raise', and 'lower'.

5. a long rod used above actors to keep a microphone close enough for recording whi

5.名詞C1
釋義

收音吊桿

拍攝時伸在畫面外收音的桿子

a long rod used above actors to keep a microphone close enough for recording while staying out of the camera picture.

例句

The sound assistant raised the boom above the two actors.

收音助理把收音吊桿舉到兩位演員上方。

hold the boom above + actors

A shadow from the boom fell across the kitchen set.

收音吊桿的影子落在廚房場景上。

同義詞
  • boom pole

    a fuller, more explicit name for the same piece of equipment

  • mic arm

    less standard; used informally for a supporting arm

文法句型

hold the boom above + person

the boom dips into the shot

用法筆記

Usually refers to the pole used by the sound crew, though in everyday film talk it can also mean the whole microphone rig.

boom — 動詞