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n (1)水(蒸)氣(gas or vapour produced by boiling water or liquid)[U]：S～rose from the plate of soup. 湯盤冒著熱氣。A cloud of～rose from the kettle. 水壺冒著騰騰蒸汽。A sauna is a type of～bath. 桑拿是一種蒸汽浴。

(2)水汽(霧)(mist that forms when hot water，vapour cools and condenses into tiny droplets in the air)[U]：S～forms on the inside of the bathroom windows. 水汽凝結(jié)在浴室玻璃窗的里側(cè)。(laundry) be full of～(洗衣房)充滿霧汽;S～rose from the wet earth in the hot sun. 炎熱的陽光下濕地升騰著潮氣。

(3)蒸汽動力(power or energy produced by steam under pressure)[U]：the age of～蒸汽時代;before the days of～蒸汽時代之前;a～train 蒸汽機(jī)車;a～brake/whistle汽動閘/汽笛;～cleaning/power 蒸汽洗滌/動力;～-powered machinery 以蒸汽為動力的機(jī)器;a building heated by～以蒸汽取暖的房屋;Many engines are driven by～. 許多發(fā)動機(jī)由蒸汽驅(qū)動。Diesel fuel has replaced～on the railways. 蒸汽機(jī)車已經(jīng)被內(nèi)燃機(jī)車取代。

full steam ahead 全速(力)前進(jìn)：The ship was moving full～ahead. 那艘船在全速前進(jìn)。

blow off/let off steam 渲泄(情感，精力)(infml)：A noisy quarrel can be a way of letting off～. 大吵一頓是一種發(fā)泄方式。

get up steam 1)(車輛或發(fā)動機(jī))緩慢增速：The train has to get up～again after a stop. 火車停車后又得重新緩慢起動。2)(人)打起精神(infml)：He was just getting up～to get to the summit of the mountain. 他正在鉚足勁頭攀向山頂。

run out of steam 沒有動(精)力，精疲力竭(fig)(infml)：She ran out of～shortly before the end of the race. 臨近終點(diǎn)，她感到筋疲力盡。

under one's own steam 依靠自己的力量(努力)(infml)：Now Jack could get about under his own～. 現(xiàn)在杰克能自己走動了。

→′steamy adj(似)蒸汽的;色情狂熱的;′steamboat n 汽艇(船);′steam-engine n 蒸汽發(fā)動機(jī);′steam-roller n 蒸汽壓路機(jī);v(用蒸汽壓路機(jī))壓平，粉碎;′steamship n 輪(汽)船;′steam-shovel n 汽鏟;蒸汽挖掘機(jī);

v (1)放出蒸汽，冒熱氣(give out or send out steam) [I，I+p]： A kettle/pot is～ing (away) on the fire. 水壺/鍋正在火上冒著蒸汽。a～ing apple pie 熱氣騰騰的蘋果餡餅;a cup of～ing tea/coffee 一杯冒著熱氣的茶/咖啡;a bowl of broth 一碗熱騰騰的肉湯;wipe one's～ing forehead 擦冒汗的前額;

(2)蒸煮(軟，洗)(cook，soften or clean by means of steam)[T+n，C+n+adj，C+n+prep (off)]：～rice/potatoes 蒸米飯/土豆;～the fish for 15 minutes 將魚蒸15分鐘;The pudding should be～ed for two hours. 布丁應(yīng)蒸兩小時?！玜n envelope open 用熱氣把信封口噓開;～stamps off envelopes 用熱氣把信封上的郵票噓一噓取下;

be/get (all) steamed up (about/over sth)變得熱情(憤怒，激動等)(infml)：There's no need to get～ed up about such a trivial matter. 沒有必要因如此瑣事著急上火。

steam across/into/out of (v prep)(以蒸汽為動力的車船等)駛(進(jìn)，出)(vt)：As the royal train～ed into the station，the crowd cheered. 當(dāng)皇家列車駛進(jìn)車站，人群歡呼起來。The ship～ed across the bay. 那船穿過海灣。They～ed out of port at 6：15. 他們在6點(diǎn)15分駛離港口。

steam along/away/off (v adv)(以蒸汽為動力的車船等)行駛;駛離(vi)：The train slowly～ed off，making a lot of noise. 火車發(fā)出隆隆響聲，緩緩駛離了車站。

steam up (v adv)使蒙上水汽(vi & vt)：The windows have～ed up. I can't see out. 窗戶已經(jīng)蒙上了水汽，我看不到外面了。The warm air～ed up her glasses as she entered the room. 當(dāng)她走進(jìn)房間，熱空氣使她的眼鏡片蒙上了水汽。

→′steamer n 汽船;蒸鍋(籠)