feabitten gray

例句：

1. 1.The dog has a gray spot on its chest.
   这只狗胸口有一个灰色的斑点。
2. 2.The old man had a gray patch on his forehead.
   那个老人额头上有一块灰色的斑。
3. 3.The cat is playing with a gray patch of fur.
   猫正在玩一块灰色的毛皮。