A hot spring is usually formed when water is heated by rocks deep in the earth. (4) If the water becomes hot enough, it boils and forms steam, and the water can shoot into the air.

地下深处的岩石将水变热，通常会形成温泉。如果水变得相当热，便会沸腾，产生蒸汽，而且水可能喷到空中。

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Then the first shoot appears, pushing up into the air and sun.

然后，长出第一根嫩芽，它破土而出，沐浴在空气和阳光中。

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The apparatus he used, known as the Jetlev R200, is a water-propelled jet pack that can shoot a person 30 feet into the air and run for some 4 hours.

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The performance of a fountain -- as long as clients service those 500 jets that are supposed to shoot water 100 feet into the air -- is guaranteed for at least 40 years.

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Our goal will be to shoot out through the atmosphere, orbit in space, then fall back into the air when the bullet gets behind our head.

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