black lead
US /blæk lɛd/
UK /blæk lɛd/
名词
石墨, 黑铅
a soft, dark gray form of carbon, also known as graphite, used in pencils and as a lubricant
示例:
•
Pencils are made with black lead, not actual lead.
铅笔是用石墨而不是真正的铅制成的。
•
The artist used a stick of black lead for the preliminary sketch.
艺术家用一根石墨棒进行初步素描。