PRB=Pre-Raphaelite Brotherhood 拉斐尔前派同仁会([英]1848年成立的写实主义艺术家组织)PRabbr.(=public relation) 公共关系pruning peaches修剪桃树Pruns tomentosa毛樱桃Prunus Sargenti山樱pruritus nuchae项部瘙痒症praecox feeling早熟感PR filter banks完全重构Praline Content脯氨酸Prunus ameniaca山杏pragrnaticality求实prurigo simplex单纯痒疹

1. The prase is labeled as slang in the dictionary.
   这一短语在字典里称为俚语。