When driving in a car on a hot summer day, you may see what looks like shimmering water on the road, which, as science tells us, is really just a mirage, an illusion caused by the heating of the air.

在炎热的夏天开车时，你可能会在路上看到闪闪发光的水，但科学告诉我们，这其实只是海市蜃楼，是空气加热造成的幻觉。

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The rain washes away the signs of summer and brings in nice and cool air.

雨洗去了夏天旳痕迹，带来了清新而清爽的空气。

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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。

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Visitors to Washington,D.C., in the summer often want to stay inside air-conditioned museums.

VOA: special.2009.09.21

Brandon Belt, a first baseman for the San Francisco Giants, says he relished his stint in San Jose in 2010, even though the low rungs of minor-league baseball meant seven-hour bus rides to games and balky clubhouse air-conditioning in the summer.

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Buildings are routinely over-air conditioned in the summer, lights are left on at night, computers hum all weekend long.

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But Nest's more exotic services focus directly on tackling the demands of air-conditioning a home in summer.

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