ashy substance

例句：

1. 1. The old painting on the wall is a bit achy.
   墙上的那幅旧画有点暗淡。
2. 2. The grass was a bit achy after the rain.
   雨后草地有些暗淡。
3. 3. The sky was a bit achy with the clouds.
   天空因为云彩而显得暗淡。