a hard, yellow-brown chemical element used in nuclear reactors to absorb neutrons and in various compounds that are important in manufacturing硼(一種非金屬化學元素,質硬,黃褐色,用於核反應堆中以吸收中子;其化合物在制造業中非常重要)
👨🏻🏫 Mr. Ng 劍橋詞典 📚 – cambridge.mister5️⃣.net切换为简体中文