| 词汇 | boom |
| 释义 | boom /bum/ boom 1 n. A long pole or spar attached either to a ship's mast to extend the sail, or to a derrick's mast to steady or guide in hoisting. (船帆等的)桁。 A long pole used on apparatus for loading and unloading; derrick. (装卸货物起重用之)吊杆。 A long pole on the end of which a camera or microphone can be moved about. (挂麦克风用)活动长杆。 Barrier extended across a river or harbor to stop traffic or to confine logs. 【航】(阻挡浮木漂走或阻挡航行的)栏木或障碍物；栅栏。 phrases lower the boom 【俚】惩罚；采取严厉措施。 boom 2 n. A deep, hollow sound, as of breakers or cannon; also, the hollow cry of the bittern. (炮的)隆隆声；(海浪的)澎湃声；麻鳱之鸣声。 (过去式: boomed; 过去完成式: boomed; 现在进行式: booming) v.t. & v.i. To make, or give forth with, a deep, hollow sound. 发出隆隆声。 He boomed out his answer. 他大声地回答。 idoms boom box (大型)手提式的音响。通常配备大形喇叭。 boom 3 n. A sudden increase of business activity; a rapid rise in prices; also, rapid growth in development and population. 突然的景气；行情暴涨；迅速发展；人口骤增。 Great increase in a candidate's popularity. 候选人的声望大幅骤增。 (过去式: boomed; 过去完成式: boomed; 现在进行式: booming) v.i. To grow with a rush; be prosperous. 突然增进或成长；趋于繁荣。 Business at the department store booms as Christmas comes closer. 当圣诞节接近时，百货公司的生意突然兴隆。 v.t. To cause to growth rapidly, as a town; push with vigor or spirit. 使(城市等)迅速成长；广为宣传。 Manufactures try to boom their goods. 厂商努力宣传他们的产品。 derivatives n. boomer. |
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