At high altitude and low temperatures, water sometimes doesn't freeze. Instead, it hovers, but as soon as something solid — like a pitot tube — flies through it, the water flash-freezes to form ice.
在高海拔和低气温的环境下，水有时并不结冰，而是处于一种不稳定的状态，一旦有像皮托管那样的固体物质从中经过，水会附着在其表面闪冻成冰。
For example, in a drought prone area of the coastal Ninh Thuan province, farmers believe that if the dragonfly flies high it will be sunny and if it flies low there will be rain.
例如，在越南沿海省份宁顺省（NinhThuan）一个易出现旱灾的地区，农民认为如果蜻蜓高飞则会艳阳高照，如果蜻蜓低飞则会下雨。
For example, in a drought prone area of the coastal Ninh Thuan province, farmers believe that if the dragonfly flies high it will be sunny and if it flies low there will be rain.
例如，在越南沿海省份宁顺省（NinhThuan）一个易出现旱灾的地区，农民认为如果蜻蜓高飞则会艳阳高照，如果蜻蜓低飞则会下雨。
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