| 单词 | boom |
| 释义 | boom v 1 [I, Ip] make a deep hollow resonant sound 发出深沉、有回响的声音 waves booming on the seashore 撞击海岸发出隆隆声的海浪 We could hear the enemy guns booming (away) in the distance. 我们能听到远处敌人的大炮轰隆声. The headmaster´s voice boomed (out) across the playground. 校长瓮声瓮气的声音传遍操场. 2 [I, Ip, Tn, Tn.p] ~ (sth) (out) utter (sth) in a booming voice 用深沉的嗓音讲（话） `Get out of my sight!´ he boomed. ｀走开!＇他用低沉的声音说. boom, n (usu sing 通常作单数) deep hollow sound 深沉的声音 the boom of the guns, the surf 大炮、波涛拍岸的隆隆声. boom n sudden increase (in population, trade, etc); period of prosperity （人口、贸易等的）突然增加; 繁荣昌盛时期 The oil market is enjoying a boom. 石油市场欣欣向荣. [attrib 作定语] a boom year (for trade, exports, etc) （贸易、出口等）繁荣昌盛的一年. boom, v [I] have a period of rapid economic growth 处於经济迅速发展时期 Business is booming. 商业正在迅速发展. boom n 1 (on a sailing-boat) long pole used to keep the bottom of a sail stretched 帆的下桁; 帆杠. =>illus at yacht 见yacht之插图. 2 (also derrick boom) pole attached to a derrick crane, used for loading and unloading a cargo 吊杆. 3 (a) barrier (usu of heavy chains) placed across a river or harbour entrance as a defence against enemy ships 横江铁索（用以防御敌舰）. (b) barrier (usu a mass of logs) placed across a river to prevent logs from floating away 水栅（通常为圆木, 用以防止木材漂走）. 4 long movable arm for a microphone 话筒的可移动长臂 [attrib 作定语] a boom microphone 有可移动长臂的话筒. |
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