Read Edit View history 丁内酯 dīngnèizhǐ butyrolactone Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 丁内酯/丁內酯 · dīngnèizhǐ · butyrolactone 2026/03/04 丁内酯 / 丁內酯 dīngnèizhǐ butyrolactone butyrolactone 丁内酯是一种常用的工业溶剂。 noun created sense Mar 4, 2026, 02:25 AM