One cattail leaf fan can be used to cool the air.
一个香蒲叶风扇可用于冷却空气。
"One of the risk factors for premature deaths is the air we breathe, over which individuals have little control," he said.
他说：“导致人们过早死亡的一个风险因素就是我们吸入的空气，而这是个人几乎无法控制的。”
One moment it was quiet and calm in the forest, the next, the air was charged with tension.
有一阵森林里还静谧、平和，过会儿空气就充满了紧张的气氛。
When the front bird moves its wings up and down, the resulting force of the air lifts the next one.
当前面的鸟上下移动它的翅膀时，产生的空气力会带动下一只鸟。
If the virus had been capable of spreading through the air, or if one infected person had unknowingly entered a large population center, Ebola might have become a worldwide epidemic.
如果这种病毒能够通过空气传播，或者如果一名感染者在不知情的情况下进入了人口密集的地区，那么埃博拉可能已经成为一种全球流行病。
He and his team found that breathing polluted air can reduce a person's education level by about one year.
他和他的团队发现，呼吸被污染的空气会使一个人的教育水平降低一年左右。
Researchers have still to decide whether smell is one sense or two—one responding to odours properly and the other registering odourless chemicals in the air.
研究者们还需要判断嗅觉到底是一种还是两种感觉，一种感觉回应气味本身，另一种感觉记录空气中无味的化学成分。
One sneeze can put as many as 40,000 droplets of saliva and mucus into the air.
一个喷嚏可以将多达40000滴唾液和黏液喷到空气中。
Seven months and one election day later, a new conservative city council suspended enforcement of the clean air zone, a first step toward its possible demise.
七个月后大选日结束的第一天，由保守派掌控的新一届市议会中止了“清洁空气区”的执行，迈出了废除该项措施的第一步。
If you're planning on being one of them soon, you might not be looking forward to the unpleasant feeling air travel often leaves you with.
如果你不久后也要成为他们中的一员，那么你可能并不喜欢飞行常常给你带来的那种不适感。
Hook stood shuddering, one foot in the air.
胡克站在那里，一只脚举在空中，浑身发抖。
No one can walk the wire in the air without a bit of fear unless trained very young.
没有人能在空中毫无畏惧地走钢丝，除非从小就接受过训练。
Though we often hear about air crashes and serious casual deeds, flying is one of the safest ways to travel.
尽管我们经常听到空中撞机和严重伤亡事故，飞行是最安全的旅行方式之一。
In 2016, only one fourth of Chinese cities met the country's air quality standards, according to a survey of 338 cities nationwide from the Ministry of Environmental Protection.
根据环境保护部对全国338个城市的调查，2016年，只有四分之一的中国城市达到了国家的空气质量标准。
Air Chief Marshal Glenn Torpy told the graduates, "This is probably one of the most significant milestones in an aviator's career."
空军上将MarshalGlenn Torpy告诉毕业生，“这可能是飞行员职业生涯中最重要的里程碑之一。”
To grow and eat a pound of potatoes sends less than one-quarter pound of carbon dioxide into the air.
种植和吃掉一磅土豆，向空气中排放的二氧化碳不超过四分之一磅。
One vision of the perfect city of the future is a place that offers easy access to air travel.
理想未来城市的愿景之一是能提供方便的航空旅行。
The higher one climbs, the less oxygen there is in the air.
爬得越高，空气中的氧气就越少。
One technical difficulty is cavitation, where low pressure behind a turning blade causes air bubbles.
一个技术难题是气穴现象，一旦发生气穴现象，位于旋转螺旋桨叶后方的低压会产生气泡。
Provisions available in local shops have to be flown into Nunavut on one of the most costly air networks in the world, or brought by supply ship during the few ice-free weeks of summer.
当地商店里的供应品必须通过世界上最贵的航空网路之一空运到努勒维特，或者在夏季中少数几个无冰周里通过补给船来购买。
Air India is one of only a handful of large airlines without a big domestic feeder airline.
印度航空是少数几家没有大型国内航空支线的大型航空公司之一。
One thousand kilometers was quite a long way to the ancient, but now we can complete the journey in about one hour by air.
1000公里在古代是相当长的一段路，但现在我们坐一个小时左右内的飞机就能完成这样一段旅程。
Which one costs me more gas? Using an Air conditioner or open windows?
哪个更费油？开空调还是开车窗？
When someone sneezes (打喷嚏) or coughs, the viruses can travel as far as one meter through the air, so you'd better stand a proper distance while talking to someone who has a cold.
当有人打喷嚏或咳嗽时，病毒可以在空气中传播一米远，所以你在与感冒患者交谈时最好站在适当的距离。
One way to make such fuels is to get CO2 from the air and put it in water.
制造这种燃料的一种方法是从空气中获取二氧化碳并将其放入水中。
One source of error is refraction, the bending of light beams as they pass through air layers of different temperature and pressure.
误差的一个来源是折射，即光束通过不同温度和压力的空气层时发生的弯曲现象。
One player puts the gilli on the ground inside a small circle and hits it into the air with the danda.
一个球员把地上的吉利球放在一个小圆圈内，然后用丹达把它打到空中。
One day, when Laozi was traveling through the Hangu Pass in Henan from the east, a purple mist suddenly appeared in the air.
一天，当老子正从东边经过河南的函谷关时，一缕紫色的薄雾突然出现在空中。
With each breath of the sharp, reviving air one seems to inhale new life.
在每一次强烈，复苏的呼吸下，整个人也好像注入了新生。
He said the clean air is one of the things he loves about living in Santa Fe.
他说干净清新的空气是他喜欢住在圣达菲的其中一点原因。
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