| 单词 | hot air |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔EQUAL/NOT EQUAL〕On cold days the device periodically provides a burst of hot air, to even out the air temperature. 天冷时，这个装置会定期释放热气，使空气温度保持稳定。朗文写作活用〔HURT/INJURE〕Six day trippers escaped unhurt when their hot air balloon hit power lines. 热气球撞到输电线，乘坐在上面的六名一日游游客安然脱身。朗文写作活用〔LIGHT〕Heat rises because hot air is lighter than cold air. 热气往上升是因为热空气比冷空气轻。朗文写作活用〔Mach〕The hot air permitted higher speeds before the critical Mach number was exceeded.热空气可使之在超过临界马赫数之前达到更快的速度。柯林斯高阶〔UP〕Hot air rises. 热空气上升。朗文写作活用〔blast〕A blast of hot air hit us as we stepped off the plane.我们下飞机时，一股热浪向我们袭来。牛津高阶〔blow〕The heater blows out hot air.发热器喷出热气。牛津同义词〔convection oven〕An oven having a fan that shortens cooking time by circulating hot air uniformly around the food.对流加热烤箱：有风扇，可以借着热空气一律在食物周围循环来缩短烹调时间的烤箱美国传统〔diesel engine〕A diesel engine is an internal combustion engine in which oil is burnt by very hot air. Diesel engines are used in buses and trucks, and in some trains and cars.柴油机;内燃机柯林斯高阶〔fact〕It is a fact that hot air rises.热空气会上升是客观事实。英汉大词典〔flue〕A pipe, tube, or channel for conveying hot air, gas, steam, or smoke, as from a furnace or fireplace to a chimney.通气管：一种用于运送热气、可燃气、水流或烟的导管、软管或管道，如从火炉或炉子传送到烟囱美国传统〔hot air〕His justification for the merger was just hot air.他提出的合并理由只是空话连篇。柯林斯高阶〔hot air〕His promises turned out to be a lot of hot air.他的承诺到头来只是一句空话。剑桥高阶〔hot air〕His speech was just hot air.他的话就是吹牛。外研社新世纪〔hot air〕I'd come to the conclusion by then that he was all hot air.我那时已得出结论，他只会夸夸其谈。柯林斯高阶〔hot air〕She's full of hot air.她满嘴都是空话。韦氏高阶〔hot air〕The theory was dismissed as a lot of hot air.这一理论被认为是空话而没人理会。朗文当代〔rise〕Hot air rises.热空气升起来了美国传统〔stunt〕Todd flew over the city in a hot air balloon as a publicity stunt .作为一种宣传噱头托德乘坐热气球飞越城市上空。朗文当代〔vacuum〕Wind is a current of air caused by a vacuum caused by hot air rising.风是由于热空气上升产生真空导致的一种气流运动。柯林斯高阶〔whoosh〕A whoosh of hot air escaped from the vent.一股热风从通风口飘来。韦氏高阶Her boyfriend is full of hot air. 她的男朋友满口大话。译典通His promises turned out to be (so much/just) hot air (= were not sincere).他的许诺到头来(尽/只)是空话。剑桥国际These birds can glide for hours, circling round and round on the columns of hot air rising from the ground.这些鸟可以滑翔好几个小时，在从地面升起的热气流柱上方盘旋。剑桥国际 |
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