boom 1

隆隆响

boom 2

繁荣；景气

boom 3

船帆的下桁

吊杆；悬臂

（照相机、摄影机、麦克风的）活动支架

（阻挡圆木漂走或阻挡船只通行的）横江铁索

隆隆响

迅速增长；趋于繁荣；景气

boom

繁荣, 隆隆声

发隆隆声, 兴隆, 大事宣传

boom

1. a deep prolonged loud noise

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2. a state of economic prosperity

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3. a sudden happening that brings good fortune (as a sudden opportunity to make money); "the demand for testing has created a boom for those unregulated laboratories where boxes of specimen jars are processed lik an assembly line"

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4. a pole carrying an overhead microphone projected over a film or tv set

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5. 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

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1. make a resonant sound, like artillery; "His deep voice boomed through the hall"

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2. hit hard; "He smashed a 3-run homer"

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3. be the case that thunder is being heard; "Whenever it thunders, my dog crawls under the bed"

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4. make a deep hollow sound; "Her voice booms out the words of the song"

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5. grow stronger; "The economy was booming"

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