speckle random phase shifter

例句：

1. 1.The dish is speckled with black spots.
   这道菜上点缀着黑色的斑点。
2. 2. The butterfly has a speckled pattern on its wings.
   这只蝴蝶翅膀上有斑点图案。
3. 3. The ground was speckled with small stones.
   地面上散布着一些小石头。