保留样品 bǎoliúyàngpǐn retention sample Origin Definitions Defs Strokes Stroke Words Sentences Sents 保留 bǎoliú verb to retain to keep; to continue to have or maintain in its original state样品 樣品 yàngpǐn noun sample sample; specimen; a physical object that represents the quality of a product or serves as a prototype for testing