Wind is a current of air caused by a vacuum caused by hot air rising.
风是由热空气上升产生真空而引起的空气流动。
The cause appears to be in part greater turbulence in the urban atmosphere as hot air rises from the built-up surface.
部分原因似乎是热空气从楼宇密集的表面上升，造成城市大气的更大湍流。
如何驾驶热气球？
Here I am in a hot air balloon.
这是我坐在一个热气球里。
Hot air flowing under the floor kept readers' feet warm.
地板下流动的热气使读者的脚保持温暖。
I've always wanted to go up in a hot air balloon.
我一直想坐热气球上去。
Melissa asked her mom if she had ever been in a hot air balloon.
梅丽莎问她妈妈她是否坐过热气球。
James hiked, fished, learnt to sail and experimented with hot air ballooning.
詹姆斯徒步旅行，钓鱼，学习驾驶帆船，还尝试了热气球。
Along the way are tales of kings and queens, hot air balloons and monkeys in space.
一路上都有国王，皇后，热气球和太空猴子的故事。
When the lanterns are lit, they slowly rise into the air like small hot air balloons for all to see.
当灯笼被点亮时，它们就像小热气球一样慢慢升到空中，供所有人观赏。
This sounds like so much hot air, but the near $13 billion fortune this entrepreneur has amassed comes from practical achievements rather than hypothetical ones.
这听起来像是夸夸其谈，但这位企业家积累的近130亿美元的财富来自实际的成就，而不是假想的成功。
Oriented to the prevailing wind, the front wall of perforated cardboard, moistened and cooled by a trickle of seawater pumped in, cools and moistens hot air blowing in.
盛行的风穿过带孔的纸板墙，注入凉爽湿润的海水，清爽潮湿的热风也涌了进来。
The Union used hot air balloons and submarines.
联邦曾使用热气球和潜艇。
What he says is just a lot of hot air - don't take it too seriously.
他说的都是些空话，不要太当真。
When it comes to our warming planet, it's time for less hot air and more action.
当谈及这个变暖中的星球，真该少些空谈，多些实干了。
The heatwave has been blamed on masses of hot air from the Sahara Desert moving north.
这场热浪归罪于从撒哈拉沙漠向北袭来的大量热空气。
People usually associate politicians, particularly in these troubled times, with hot air.
人们总是把政客与说大话联系起来，尤其是在此艰难时期。
A hot air balloon, shaped and sized to resemble the Space Shuttle, drifts over Ottawa.
一个外形和尺寸十分像太空飞船的热气球漂浮在渥太华上空。
The hot air and scent of fabric softener wafted out the open doors and down the sidewalk.
热气和纤维软化剂吹拂出的味道飘出门外，沿着人行道飘着。
The Cow hot air balloon takes off in the skiing resort of Chateau d’Oex, in the Swiss Alps.
在瑞士阿尔卑斯山脉下某滑雪场起飞的奶牛造型热气球。 （小编注：这地方太美了！）
Immediately upon formation, the fireball begins to grow rapidly and rise like a hot air balloon.
火球在形成之后立刻迅速膨胀并上升，像热气球一样。
If I had a hot air balloon, I would fly around the world and see many wonderful places and things.
如果我有一个热气球，我要飞遍这个世界，去看许多奇妙的地方和事物。
The first working week of the new decade has been characterised by a curious mix of cold and hot air.
冷热气流的奇异交织成为新十年第一个工作周的特征。
Collection of cool modern hot air balloons and creative giant balloon designs from all over the world.
来自世界各地的现代超酷热气球及创意巨型气球设计集锦。
So, Microsoft's Bing does hold promise in this type of search. Maybe it's not all hot air after all...
所以，微软的“必应”在该类型搜索上还是有前途的。
Museo Aero solar is a solar energy powered hot air balloon, completely made from recycled plastic bags.
飞行太阳能博物馆是有太阳能供能的热气球。气球全由可回收塑料袋制成。
The woman below replied, "You are in a hot air balloon hovering approximately 30 feet above the ground.
妇女在下面回答，“你在一个热气球里，大约离地面三十英尺。
In the oven, the transfer of heat from hot air to vegetable occurs more slowly than immersion in boiling water.
在烤炉中，热空气带走了蔬菜的热量，使得这一过程缓慢于开水煮菜。
Fill a lightweight material with hot air, helium or hydrogen, and you have a vessel that floats in the air.
在容器中充入热气、氦气或氢气等轻气体，就能造就一艘漂在空中的飞船。
The main meetings were best suited to ballooning enthusiastics, such was the hot air expelled from the stage.
这些重要的会议最适宜热情飞涨，诸如从台上爆发出来的夸夸其谈。
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