1. 就是说华越大，空气中水滴、冰晶、悬浮物越小，天气也越好，相反华越小，说明空气中水滴、冰晶、悬浮物半径越大，天气将转坏。

1. That is to say, the larger the haze, the smaller the water droplets, ice crystals, and suspended particles in the air, indicating better weather. Conversely, the smaller the haze, it indicates that the radius of water droplets, ice crystals, and suspended particles in the air is larger, suggesting that the weather will deteriorate.

2. 从华的形成我们可以知道华是由云中小颗粒衍射阳光、月光而形成的。华的大小与云中水滴、冰晶的半径成反比，水滴、冰晶的半径越小华就越大；水滴、冰晶半径越大，华就越小。我们看到华由大变小说明，云中水滴、冰晶半径越来越大，天气将逐渐转坏。相反，华由小变大，说明云中水滴逐渐变小，系统逐渐趋于稳定，天气将转好。

2. From the formation of Huá (halo), we can know that Huá is formed by the diffraction of sunlight and moonlight by small particles in the clouds. The size of Huá is inversely proportional to the radius of water droplets and ice crystals in the clouds; the smaller the radius of the water droplets and ice crystals, the larger the Huá; conversely, the larger the radius of the water droplets and ice crystals, the smaller the Huá. The fact that we observe the Huá changing from large to small indicates that the radius of the water droplets and ice crystals in the clouds is gradually increasing, suggesting that the weather will gradually worsen. Conversely, if the Huá changes from small to large, it indicates that the water droplets in the clouds are gradually decreasing in size, and the system is gradually moving towards stability, implying that the weather will improve.