The researchers found no evidence that air pollution influenced headaches.

VOA: special.2009.03.18

Well, first of all, you may not survive for long, if you truly don't accept the fact that things, people being no exception fall when left in mid-air.

首先，你可能活不长，如果你不接受，人会从半空中掉下来的事实。

哈佛公开课 - 幸福课课程节选

They say the roads to Sa'ada governorate are blocked and there is no access to the conflict zone by air.

VOA: standard.2009.08.21

Millions of people were left in the dark, with no power, no telephones, no internet, and no air-conditioning during the worst heat wave in years.

FORBES: The U.S. enters the 20th century: why we can't keep the electricity on

"By that I mean try to imagine creating a cavity inside your mouth without any air bubbles and by letting in no air through your lips or throat -- it's basically impossible at sea level because the air pressure outside your mouth pushes the air pocket closed, " he said.

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There's no city sewer, no power lines and no air conditioning.

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