名詞 mottling:

1. the act of coloring with areas of different shades

動詞 mottle:

1. mark with spots or blotches of different color or shades of color as if stained
   同義詞：mottle, streak, blotch
2. colour with streaks or blotches of different shades
   同義詞：mottle, dapple, cloud

1. A horse having a coat of mottled gray.
   菊花青馬帶有斑點的灰色毛皮的馬
2. An animal with a mottled or spotted skin or coat.
   花斑動物有花斑或斑點的皮或毛皮的動物