biro /'bairәu/ 📖 中文释义 n. 圆珠笔 🔗 释义中的汉语词 圆珠笔 🧩 词形变化 复数 biros 📘 English Definition（英文释义） n a pen that has a small metal ball as the point of transfer of ink to paper ← birns B 字母词表 biroang →