音標發(fā)音英式音標 [?fi?.n?l?fθ?l.i?n]美式音標 [?fi?.no?l?θ?l.i?n]英式發(fā)音 基本解釋酚酞。同根派生 phenolphthalein相關詞英英字典劍橋英英字典 a substance that is colourless when it is mixed with an acid and pink or red when mixed with an alkaliphenolphthalein劍橋字典phenolphthalein柯林斯字典