求翻译：由于江、河、湖、海受到太阳照射，水就变成水蒸气。水蒸气上升又变成小水滴或小冰晶受到下边气流也在不断把水汽众下面输送到云里来。云里的小水滴、小冰晶在运动中相互碰撞，体积会增大。云下层的水滴慢慢变大，云彩上层的冰晶体积增大以后，掉到云层下部的水滴之间，水滴会越来越大。当这些水滴大到上升气流拖不住它们的时候，就会下雨了。是什么意思？

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The river, river, lake, sea has been exposed to sunlight, the water becomes vapor. Water vapor rises into small water droplets or ice crystals are small air flow beneath the water vapor in the public transport to the cloud. The small cloud droplets, small ice crystals colliding with each other durin

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Due to the River, River, Lake, sea and Sun, the water becomes water vapor. Steam rose into small water droplets or ice crystals small bottom air is continually transported below the cloud to water vapor. Cloud droplets, small ice crystals in motion collide, the volume increases. Lower deck of clouds