retarder /ri'tɑ:dә/ 📖 中文释义 n. 阻滞物[化] 阻滞剂; 迟延剂; 抑制剂; 阻聚剂 📘 English Definition(英文释义) n. One who, or that which, retards. ← retardent R 字母词表 retarder HK-14 →