Read Edit View history 异戊二烯 yìwù'èrxī isoprene Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 异戊二烯/異戊二烯 · yìwù'èrxī · isoprene 2026/03/04 异戊二烯 / 異戊二烯 yìwù'èrxī isoprene isoprene 异戊二烯是天然橡胶的主要成分。 noun created sense Mar 4, 2026, 02:25 AM