His blue porkpie hat was set very square on his head and chalk-white hair showed under it.

他的蓝色圆帽帽子正方形地戴在头上， 帽檐下露出粉笔白的头发。

They make an intriguing pair of rivals: he in a dark suit and porkpie hat, she in a gingham dress and matching hair bow.

他们是一对让人玩味的竞争对手：他身着深色西装，头戴圆礼帽，她身着格子棉布裙，头戴配套的蝴蝶结。