boom
[NOUN, VERB]
booms
1. [C 可数名词] （经济）繁荣
If there is a boom in the economy, there is an increase in economic activity, for example, in the number of things that are being bought and sold.
双语例句
例：An economic boom followed, especially in housing and construction.
接着是一个经济的繁荣，尤其在住房和建筑方面。
例：The 1980s were indeed boom years.
20世纪80年代确实是繁荣的时代。
例：the cycle of boom and bust which has damaged us for 40 years.
繁荣与萧条的循环使我们40年来饱受摧残。
2. [C 可数名词] 增长
A boom in something is an increase in its amount, frequency, or success.
双语例句
例：The boom in the sport's popularity has meant more calls for stricter safety regulations.
该项运动普及程度的大幅提高带来了更多要求更严格安全法规的呼声。
例：Public transport has not been able to cope adequately with the travel boom.
公共交通不能充分满足旅游业繁荣发展带来的需求。
例：the collapse of the dotcom boom.
互联网繁荣的崩塌。
3. [C 可数名词] 轰鸣声
A boom is a loud, deep sound that lasts for several seconds.
双语例句
例：The stillness of the night was broken by the boom of a cannon.
夜晚的寂静被大炮的轰鸣声打破了。
NOUN. 名词
boom out
1. [PHRASAL 短语] 发出低沉洪亮的声音（同）boom）
Boom out means the same as boom.
双语例句
例：Music boomed out from loudspeakers.
扬声器传出了低沉响亮的音乐。
例：A megaphone boomed out, 'This is the police.'
扩音器传出了低沉而响亮的声音：“我们是警察。”
PHRASAL VERB. 短语动词
booms , booming , boomed
1. [I 不及物动词] 激增
If the economy or a business is booming, the number of things being bought or sold is increasing.
双语例句
例：By 1988 the economy was booming.
到1988年为止经济一直很繁荣。
例：Sales are booming.
销售量在激增。
例：a booming global consumer electronics market.
全球消费电子产品市场的繁荣。
2. [I 不及物动词] 发出低沉洪亮的声音
When something such as someone's voice, a cannon, or a big drum booms, it makes a loud, deep sound that lasts for several seconds.
双语例句
例：'Ladies,' boomed Helena, without a microphone, 'We all know why we're here tonight.'
“女士们”，海伦娜没用话筒朗声说道，“我们都知道今晚我们为什么在这儿。”
例：Thunder boomed over Crooked Mountain.
雷声在克鲁克德山上空轰鸣。
VERB. 动词
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