Read Edit View history 胞嘧啶 bāomìdìng cytosine Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 胞嘧啶 · bāomìdìng · cytosine 2026/03/04 胞嘧啶 bāomìdìng cytosine cytosine nucleotide (C, pairs with guanine G in DNA and RNA) 胞嘧啶是构成DNA和RNA的四种主要碱基之一。 noun created sense Mar 4, 2026, 02:25 AM