counterbore /kauntә'bɔ:/ 📖 中文释义 (用平底扩孔钻)扩孔[锪孔, 镗孔, 镗阶梯孔], 沉孔, 埋头孔 🔗 释义中的汉语词 镗孔 🧩 词形变化 过去分词 counterbored 📘 English Definition(英文释义) n a bit for enlarging the upper part of a hole ← counterbombardment C 字母词表 counterbore (drill) →