Question

boom n.繁荣,隆隆声 v.发隆隆声,兴隆,大事宣传 Guns, thunder, drums, deep voices — all of these are capable of a pretty loud boom. When they make the sound, you can also say that they boom: "I saw the flash of lightning and got ready for the thunder to boom." Another kind of boom is a prosperous period, like an oil boom or an economic boom. The long pole that holds a microphone or the sail on a boat is yet another type of boom. ★★★☆☆ 2004.3

Accepted Answer

[bu:m] A boom is a very loud, deep sound that echoes. The distant boom of fireworks might spook your nervous dog. Many consumers seem to have been influenced by stock-market swings, which investors now view as a necessary ingredient to a sustained boom. 1[N-COUNT 可数名词]（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.   [usu sing]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。The 1980s were indeed boom years.20世纪80年代是真正的繁荣时期。...the cycle of boom and bust which has damaged us for 40 years.40年来给我们造成巨大破坏的经济繁荣与萧条的交替循环2[N-COUNT 可数名词]（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.   [usu sing]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。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。3[VERB 动词]（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.   [V]  [V-ing]By 1988 the economy was booming...到1988年经济一直很繁荣。Sales are booming...销售额在快速增长。It has a booming tourist industry.其旅游产业在蓬勃发展。4[N-COUNT 可数名词]（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.   [usu sing]5[N-COUNT 可数名词]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. 6[VERB 动词]（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.   [V with quote]  [V prep/adv]  [Also V]  [V P prep/adv]  [V P with quote]  [V P n (not pron)]  [Also V P]'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。”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。Boom out means the same as boom .boom out同boomMusic boomed out from loudspeakers...喇叭中传出低沉的音乐声。A megaphone boomed out, 'This is the police.'…扩音器响了起来：“我们是警察。”He turned his sightless eyes their way and boomed out a greeting.他将失明的双眼转向他们，低声打了个招呼。Boom is also a noun.The stillness of night was broken by the boom of a cannon.夜晚的寂静被隆隆的炮声打破。7  →see: baby boom； 相关词组：boom out

英语单词	boom
英美音标	[bu:m]
中文释义	n.繁荣,隆隆声 v.发隆隆声,兴隆,大事宣传
vocab简明	A boom is a very loud, deep sound that echoes. The distant boom of fireworks might spook your nervous dog.
vocab扩展	Guns, thunder, drums, deep voices — all of these are capable of a pretty loud boom. When they make the sound, you can also say that they boom: "I saw the flash of lightning and got ready for the thunder to boom." Another kind of boom is a prosperous period, like an oil boom or an economic boom. The long pole that holds a microphone or the sail on a boat is yet another type of boom.
真题原句	Many consumers seem to have been influenced by stock-market swings, which investors now view as a necessary ingredient to a sustained boom.
柯林斯星级	★★★☆☆
柯林斯解释	1 [N-COUNT 可数名词]（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. [usu sing] 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。 The 1980s were indeed boom years. 20世纪80年代是真正的繁荣时期。 ...the cycle of boom and bust which has damaged us for 40 years. 40年来给我们造成巨大破坏的经济繁荣与萧条的交替循环 2 [N-COUNT 可数名词]（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. [usu sing] 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。 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。 3 [VERB 动词]（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. [V] [V-ing] By 1988 the economy was booming... 到1988年经济一直很繁荣。 Sales are booming... 销售额在快速增长。 It has a booming tourist industry. 其旅游产业在蓬勃发展。 4 [N-COUNT 可数名词]（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. [usu sing] 5 [N-COUNT 可数名词]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. 6 [VERB 动词]（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. [V with quote] [V prep/adv] [Also V] [V P prep/adv] [V P with quote] [V P n (not pron)] [Also V P] '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。” 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。 Boom out means the same as boom .boom out同boom Music boomed out from loudspeakers... 喇叭中传出低沉的音乐声。 A megaphone boomed out, 'This is the police.' …扩音器响了起来：“我们是警察。” He turned his sightless eyes their way and boomed out a greeting. 他将失明的双眼转向他们，低声打了个招呼。 Boom is also a noun. The stillness of night was broken by the boom of a cannon. 夜晚的寂静被隆隆的炮声打破。 7 →see: baby boom ；相关词组： boom out
来源	2004.3

Boom [V Ed N Count 可数名词 Deep Economic [Usu