The problem is most acute in cities, the report found, but air in rural areas is worse than many think.
报告指出，城市中的空气污染问题最严重，但是乡下的空气质量比许多人想象中还糟。
For one thing, the fossil fuels will run out eventually. But air capture could provide an ingenious alternative.
首先，地球上的化石燃料最终将会用光，而空气捕捉可能可以提供一种绝佳的替代品。
But air picks up speed as it approaches a fissure, said Geoffrey Landis, a physicist at NASA's Glenn Research Center in Cleveland.
但空气在接近裂缝的时候速度会越来越快，杰弗里·兰迪斯说，他是美国宇航局在克利夫兰·格伦研究中心的一位物理学家。
When Scola hitting nothing but air at the start of game and the Rockets couldnt set any offensive tone, the game was already doomed.
当斯科拉在比赛开始投篮命中，火箭队没有任何进攻气氛，这场比赛已经注定了。
Overall though, I'm surprised with the performance fo this unit, considering it contains nothing but air between the coils and wood all around.
总体不过，我很惊讶的表现为这个单位，认为它包含只不过线圈之间的空气和木材各地。
But Ling Yu, who runs the business with a Mo, insisted: "We know there is nothing but air in the bottles, and so do our customers." People can put their own problems into them.
与阿莫一起经营此项业务的于玲却坚称：“瓶里只有空气，这顾客和我们都知道，但人们可以把他们自己的的问题放进里面。”
But air quality remains such a large problem that officials are also preparing contingency plans that could force factories across much of northern China to close temporarily if conditions warrant.
然而，空气质量依然是一个大问题，因此官方还制定了一项预案，在必要时，强行临时关闭华北大部分地区的工厂。
Air in the atmosphere's outermost layer is very thin, but air molecules still create drag that slows down satellites, requiring engineers to periodically boost them back into their proper orbits.
大气最外层的空气非常稀薄，但空气分子仍能产生阻力减慢人造卫星的速度，这样工程师们就得定期把它们推回到其正确的轨道上。
The aircraft belonged to Ecuador Airline, but it had been chartered by Air France for the route from Bogota to the Ecuadorian capital Quito.
该飞机属于厄瓜多尔航空公司，但由法航租用，用于从波哥大飞往厄瓜多尔首都基多的航线。
Seals breathe air, but that doesn't stop some of them from sleeping underwater.
海豹呼吸空气，但这并不能阻止它们在水下睡觉。
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。
Eventually the temperature of the surface waters of the sea rose, not so fast as the air temperature it is true, but fast enough to produce a dangerous increase of humidity.
最终，海水表面的温度上升，虽然不像空气温度上升那么快，但已经快到足以造成危险的湿度上升。
"I don't like fresh air when I am by myself," replied the Rajah; "but my cousin is going out with me."
“要是只有一个人，我不喜欢新鲜空气，”小王公回答，“但这次，有我表妹陪我出去。”
Studies have shown that air pollution has a great effect on the white matter in the brain, but not the grey matter.
研究表明，空气污染对大脑中的白质有很大影响，但对灰质没有影响。
During the pupa stage, they do not eat foods but do sit at the surface and breathe air through two small tubes.
在蛹阶段，它们不吃食物，但在水面游动时会靠两个细小的管道呼吸空气。
Cosmic rays of various kinds come through the air from outer space, but enormous quantities of radiation from the sun are screened off.
来自外太空的各种宇宙射线通过空气进入大气层，但来自太阳的大量辐射却被屏蔽了。
A century earlier, Henry Cavendish had noted the existence of a residual gas when oxygen and nitrogen are removed from air, but its importance had not been realized.
一个世纪前，亨利·卡文迪什注意到当空气中的氧气和氮气被除去，还有其他剩余气体存在，但人们还没有认识到它们的重要性。
Things are not "made up" in Frost, not "made up" in the sense of imagined, but called up out of thin air, like fairies and elves.
在弗罗斯特的作品中，事物不是“虚构的”，不是想象中的“虚构”，而是凭空虚构出来的，就像仙女和精灵一样。
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”。
In the deaf culture of North America, many listeners show applause not by clapping their hands but by waving them in the air.
在北美的聋人文化中，许多听众不是通过拍手，而是在空中挥舞双手来表示鼓掌。
Apparently, there were some low clouds in the area, but mostly it was just miscommunication between the pilots and the air traffic controllers.
显然，该地区有一些低空云层，但主要是飞行员和空中交通管制员之间的沟通失误。
If it is displayed on such occasions, do not allow the flag to fall to the ground, but let it be carried high up in the air to form a feature of the ceremony.
如果在这种场合展示国旗，不要让国旗掉到地上，而是让它高高地悬在空中以构成仪式的特色。
She never really crawled, but would scoot around with her head on the floor, bottom stuck up in the air.
她从来没有真正地爬过，但她会把她的头放在地板上，屁股翘在空中快速移动。
To fly, of course, is the fastest way, but you can't see anything during your stay in the air but the blue sky and white clouds.
飞行，当然，是最快的方式，但是在你停留在空中的时候，你看不到任何东西，除了蓝天和白云。
This behavior is not, he says, unique to air travel, but can happen in any workplace where the leader is overbearing.
他表示，这种行为并非是航空旅行所特有的，也可能发生在任何有傲慢的领导者的工作场所。
But demanding too much of air travelers or providing too little security in return undermines public support for the process.
可是，如果对飞机乘客的要求过于苛刻，或者相应的安全保障太少，反过来就不利于民众对安检的支持。
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。
The villagers conducted their concerns with an absent air, and talked little; but they sighed often.
村民们带着一种心不在焉的神情，很少说话；但他们经常叹息。
The villagers conducted their concerns with an absent air, and talked little; but they sighed often.
村民们带着一种心不在焉的神情，很少说话；但他们经常叹息。
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