stiffening /'stifniŋ/ 📖 中文释义 [化] 加劲 🔗 释义中的汉语词加劲 🧩 词形变化 原形 stiffen 📘 English Definition(英文释义) n. the act of becoming stiffn. the process of becoming stiff or rigid ← stiffeners S 字母词表 stiffening agent →