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。

《柯林斯英汉双解大词典》

The wind blew the kite high into the air.

风把风筝吹得高高的。

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The wind blew the money into the air and it fell all over the street.

风把钱吹到空中，掉得街上到处都是。

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The wind gains strength from the thermal energy of the ocean, eventually condensing vapors and circulating air fast enough to form high-speed wind and heavy rain.

CNN: graphic

From the center of the stage, a powerful stream of air was sent though a vertically positioned wind tunnel, allowing acrobats to hover in mid-air.

CNN: 'Magnificent' Games sent off in style

At any rate, a group of municipal power companies in the American Midwest reckon that building a wind-powered compressed-air plant to take advantage of the blustery Great Plains will be worthwhile.

ECONOMIST: Compressed air might help to make wind power more reliable