星期六早晨,天空中飘飘洒洒,下起了冬天里的第一场雪。雪下得很大,透过窗户望去,外面白茫茫一片,好像变成了美丽的童话世界。知识加油站雪从哪里来在地球上,水是不断循环运动的,海洋和地面上的水受热蒸发到天空中,这些水汽又随着风运动到别的地方,当它们遇到冷空气,形成降水又重新回到地球表面。这种降 On the morning of Saturday morning, the sky fluttered and started the first snowfall in winter. The snow is very large, looked through the window, the vast white outside, seems to have become a beautiful fairy tale world. KNOWLEDGE Where does the gas station come from? On this earth, water circulates endlessly. The water on the ocean and on the ground evaporates into the sky with heat, which moves with the wind to other places as they encounter cold air and form Precipitation returns to Earth’s surface again. This drop