蓝天是一幅绝美的画卷，它是大自然最为纯净的颜色。在蓝天的映衬下，云彩像棉花糖般柔软，阳光像金粉般耀眼，让人不由得感叹世界之大，自然之美。The blue sky is a breathtaking painting, the purest color in nature. Against the backdrop of the blue sky, clouds are soft as cotton candy, and sunlight is dazzling like gold dust, making people marvel at the vastness of the world and the beauty of nature.