Little Tom wore a checkered pinny while helping in the kitchen to protect his clothes.

pinny 是名词，指"围裙"，是 pinafore 的昵称形式。pinafore 由 pin（别针）和 afore（在前面）组成，原指用别针固定在衣服前面的围裙，现在泛指各种款式的围裙。pinny 常用于指儿童或家庭用的围裙。