Exclusion of air creates a vacuum in the bottle.
瓶子里的空气排除后就产生真空。
A cold draught of air blew in from the open window.
一股寒气从敞开的窗户吹了进来。
Ensure there is a free flow of air around the machine.
要确保机器周围空气畅通。
Cabin crews are reporting up to nine cases of air rage a week.
乘务人员们报告每周有多达9起的乘客情绪失控事件。
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 new government has yet to grapple with the problem of air pollution.
新政府还需尽力解决空气污染问题。
Trapped in a pocket of air, they had only 40 minutes before the tide flooded the chamber.
他们被困在有一点空气的弹丸之地，再过40分钟洪水就会淹没这间屋子了。
The north pole is warmer than the south and the circulation of air around it is less well contained.
北极比南极温暖，其周围的空气循环更为畅通。
Our body needs plenty of air when we are asleep.
我们睡觉时身体需要充足的空气。
The impact of air pollution on people will be gradual.
空气污染将逐渐影响人类。
We must address ourselves to the problem of air pollution.
我们必须设法解决空气污染问题。
The subject of air pollution is very near to everyone's heart.
空气污染是每个人都非常关心的话题。
The composition and levels of air pollution vary from place to place.
空气污染的成分和程度在各个地方都不尽相同。
The problem of air pollution should be the top priority for the government.
政府应优先考虑空气污染问题。
The first bubbles to escape from the liquid are a mixture of air and hydrogen.
从该液体中最先逸出的气泡是空气和氢的混合物。
The combination of air pollution and exercise increases the potential problems.
空气污染和运动锻炼加重了潜在的问题。
There is no doubt that enough concern must be paid to the problem of air pollution.
毫无疑问，我们必须对空气污染问题有足够的重视。
These ratios register the fluctuations of air temperatures over the seasons and years.
这些比率记录了空气温度随季节和年份的波动。
To generate lift, a bird has merely to tilt its wings, adjusting the flow of air below and above them.
为了产生抬升力，鸟儿们只要倾斜翅膀，对从身体上方和下方通过的气流稍作调整。
I have learnt that the problem of air pollution is universal and that we were likely to run out of some natural resources.
我了解到空气污染问题是全球性的，而且我们可能会耗尽一些自然资源。
Perhaps struggle unfolds first, not at an economic or social level, but over the appropriation of air, essential to life itself.
也许首先展开的不是在经济或社会层面上的斗争，而是为占有对生命本身必不可少的空气而斗争。
The government should take into serious consideration the emergency and severity of air pollution and take measures to deal with it.
政府应认真考虑空气污染的紧急性和严重性，并采取措施加以处理。
They simply sense changes in their environment, as for example when the mound's wall has been damaged, altering the circulation of air.
它们只是简单地感觉到它们所处环境的变化，例如，当土堆的壁被破坏时，会改变空气的循环。
The taste, texture, and feel of food are what we tend to focus on, but most important are the slight puffs of air as we chew our food—what scientists call "retronasal smell".
食物的味道、质地和口感往往是我们关注的重点，但最重要的是我们咀嚼食物时产生的轻微的气息，科学家们称之为“鼻后气味”。
So you can imagine the reaction when a recent USA Today investigation of air quality around the nation's schools singled out those in the smugly green village of Berkeley, Calif.
最近《今日美国》对全国学校附近的空气质量进行调查，挑出了那些在加州伯克利绿色小镇沾沾自喜的学校，人们的反应可想而知。
I took in a large gulp of air.
我吸了一大口气。
A rush of air on my face woke me.
脸上的一股急促的气流惊醒了我。
A hovercraft rides on a cushion of air.
气垫船悬浮在气垫上行驶。
I bobbed to the surface and gasped a lungful of air.
我浮上水面，深吸了一口气。
She was screwing up her eyes against the onrush of air.
一阵风突然吹来，她眯起了眼睛。
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