保久乳 bǎojiǔrǔ shelf-stable milk Origin Definitions Defs Strokes Stroke Words Sentences Sents 保 bǎo verb to maintain to maintain; to keep or preserve in an original state久 jiǔ adjective long of a long duration; for a long time乳 rǔ nounverb milk (bound form) milk; a milk-like liquid or emulsion