the Rolls-Royce of somethingBritish EnglishBrE informalBEST something that is regarded as the highest quality example of a particular type of product 某类产品中的极品 the Rolls-Royce of beers 啤酒中的极品
the Rolls-Royce of something• It is the Rolls-Royce of pens; prices start at £130 and rise to more than £5,000.
→ the Rolls-Royce of something at Rolls-Royce(1)