retractor /ri'træktә/ 📖 中文释义 n. 食言的人, 牵拉肌, 牵开器[医] 牵开器, 缩肌 🧩 词形变化 复数 retractors 📘 English Definition(英文释义) n. surgical instrument that holds back the edges of a surgical incision ← retractometer R 字母词表 retractors →