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noun
一. any of various more-or-less horizontal spars or poles used to extend the foot of a sail or for handling cargo or in mooring
二. a pole carrying an overhead microphone projected over a film or tv set
Synonym: microphone boom
三. a deep prolonged loud noise
Synonym: roarroaringthunder
四. a sudden happening that brings good fortune (as a sudden opportunity to make money)
e.g. the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed like an assembly line
Synonym: bonanzagold rushgravygodsendmanna from heavenwindfallbunce
五. a state of economic prosperity
verb
一. grow vigorously
e.g. The deer population in this town is thriving
business is booming
Synonym: thriveflourishexpand
二. hit hard
e.g. He smashed a 三-run homer
Synonym: smashnailblast
三. make a deep hollow sound
e.g. Her voice booms out the words of the song
Synonym: boom out
四. make a resonant sound, like artillery
e.g. His deep voice boomed through the hall
Synonym: din
五. be the case that thunder is being heard
e.g. Whenever it thunders, my dog crawls under the bed
Synonym: thunder
一. （经济的）繁荣，景气
If there is a boom in the economy, there is an increase in economic activity, for example in the amount of things that are being bought and sold.
boom
e.g. An economic boom followed, especially in housing and construction...
接着出现了经济繁荣，尤其是在房地产业和建筑业。
e.g. The 一九八零s were indeed boom years.
二零世纪八零年代是真正的繁荣时期。
二. （数量的）增长；（频率的）加快；成功
A boom in something is an increase in its amount, frequency, or success.
e.g. The boom in the sport's popularity has meant more calls for stricter safety regulations...
该项体育运动的兴起意味着制定更加严格的安全规则的呼声更高了。
e.g. Public transport has not been able to cope adequately with the travel boom.
公共交通系统还不能充分满足迅速发展的旅游业的需求。
三. （经济或生意）景气，繁荣
If the economy or a business is booming, the amount of things being bought or sold is increasing.
e.g. By 一九八八 the economy was booming...
到一九八八年经济一直很繁荣。
e.g. Sales are booming...
销售额在快速增长。
四. （船帆的）下桁；帆桁
On a boat, the boom is the long pole which is attached to the bottom of the sail and to the mast and which you move when you want to alter the direction in which you are sailing.
五. 浮木挡栅，水栅（用来阻挡溢出的油扩散）
A boom is a large floating barrier that is used for stopping oil that has spilled from spreading.
六. （人)吼叫；（大炮或大鼓）发隆隆声
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.
e.g. 'Ladies,' boomed Helena, without a microphone, 'we all know why we're here tonight.'...
“女士们，”海伦娜大声喊道，没有用麦克风，“我们都知道今晚我们为什么来到这里。”
e.g. Thunder boomed like battlefield cannons over Crooked Mountain.
雷声像战场上的炮声一样响彻克鲁克德山。
七. -> see baby boom
相关词组：boom out
一. 摄影机托架：摄影机托架 (BOOM) 一种类似起重机的活动装置,可让摄影机移入或越过场景,由不同的高度或角度连续拍摄单一动作或整段影片,使画面显得流畅而富于变化.
二.
二. 臂：▲垂直轴(COLUMM)旋转配全重负荷轴承以手动方式或电动方式(OPTION)调整. ▲垂直轴(COLUMM) 采AC MOTOR传动,配合滚珠紧迫滑轨,重型链条带动升降,并有安全装置防止链条断裂. ▲水平臂(BOOM) 采DC MOTOR传动,配合精密轴、承移动平稳.
三. 横杆：小心解开主帆帆底,将帆底由帆尾角至帆前缘角方向依次小心导入横杆(Boom)的固定槽内,并随时检查主帆是否与其他帆索具缠绕在一起. 前侧行使(Close reach)帆放出一∕四(二二.五度)正侧行使(Beam reach)帆放出一∕二(四五度)后侧行使(Broad reach)帆放出三∕四(六七.五度)
四. boom：build operate own maintain; 建造
常用短语
常用例句
词汇搭配
经典引文
The risksa small one in those boom yearssof resigning from the Navy.
出自：attrib.Trade for him never boomed and he earned only about twelve shillings a week.
出自：K. M. E. Murray词语用法
词源解说
高考真题例句
Over the years, Parisian cafes have fallen victim to changes in the French lifestyle—longer working hours, a fast food boom and a younger generation's desire to spend more time at home.
多年来, 巴黎的咖啡馆已经成为法国生活方式变化的受害者——工作时间变长, 快餐盛行, 以及年轻一代想花更多时间待在家里。
二零一五全国卷一
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