black lead /'blæk led/ 📖 中文释义 石墨, 笔铅[化] 石墨 🔗 释义中的汉语词 石墨笔铅 📘 English Definition(英文释义) Plumbago; graphite. It leaves a blackish mark somewhatlike lead. See Graphite. ← black leaching B 字母词表 black lead brush →