make a silk purse of a sow's ear
词源说明
Coined by Stephen Gosson in 1579 in the book The Ephemerides of Phialo: Deuided Into Three Bookes p62v
释义（英文）
动词 Verb
- (idiomatic) To produce something refined, admirable, or valuable from something which is unrefined, unpleasant, or of little or no value.