luffing /'lʌfiŋ/ 📖 中文释义 俯仰运动, 上下摆动, 起重机臂的转动 🧩 词形变化 原形 luff 📘 English Definition(英文释义) v sail close to the windv flap when the wind is blowing equally on both sides ← luffer L 字母词表 luffs →