释义：
1 、N-COUNT （经济的）繁荣，景气
例句：
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。
2 、N-COUNT （数量的）增长；（频率的）加快；成功
例句：
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。
3 、VERB （经济或生意）景气，繁荣
例句：
By 1988 the economy was booming...
到1988年经济一直很繁荣。
4 、N-COUNT （船帆的）下桁；帆桁
例句：
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.
在船上，吊杆是连接在帆底和桅杆上的长杆，当你想改变航行方向时，它就会移动。
5 、N-COUNT 浮木挡栅，水栅（用来阻挡溢出的油扩散）
例句：
A boom is a large floating barrier that is used for stopping oil that has spilled from spreading.
繁荣是一个巨大的浮动屏障，用来阻止溢出的石油。
6 、VERB （人)吼叫；（大炮或大鼓）发隆隆声
例句：
'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。”
第三人称单数： booms
复数： booms
现在分词： booming
过去式： boomed
过去分词： boomed
参考资料：百度百科-boom
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