a pretty hash的用法和样例：
- The papers lay in a disorderly pile.
- Your desk is always pretty messy.
- She made a pretty bad mess of it.
- The company's affairs are in a terrible mess.
a pretty hash的相关资料：
a flow a A handkerchief is usually square. a revue with elaborate costuming. a football match/team/stadium A boolean ring is absolutely.flat a conference room/centre/hall a textBook case of schizophrenia. a resurgence of nationalist feeling a portrait drawn/taken from life A durable bluish-green pigment.