fading on troposphericscatter path

例句：

1. 1. The sunset was fadinginto the horizon.
   夕阳正在逐渐消失在地平线上。
2. 2. The colors on the painting were fading with time.
   这幅画上的颜色随着时间逐渐消失。
3. 3. The light in the roomwas fading as night fell.
   随着夜幕降临，房间里的光线开始变得暗淡。