pinning /'piniŋ/ 📖 中文释义 [电] 阻塞 🔗 释义中的汉语词阻塞 🧩 词形变化 原形 pin 📘 English Definition（英文释义） n. a mutual promise of a couple not to date anyone else; on college campuses it was once signaled by the giving of a fraternity pin ← pinninerved P 字母词表 pinnings →