Read Edit View history 酞 tài phthalein Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 酞 · tài · phthalein 2026/03/04 酞 tài phthalein phthalein (chemistry) 实验中使用了酚酞作为酸碱指示剂。 created sense Mar 4, 2026, 02:25 AM