Read Edit View history 取代基 qǔdàijī substituent Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 取代基 · qǔdàijī · substituent 2026/03/04 取代基 qǔdàijī substituent (chemistry) substituent 该有机分子包含多个取代基。 created sense Mar 4, 2026, 02:25 AM