black lead
US /blæk lɛd/
UK /blæk lɛd/
名詞
石墨, 黑鉛
a soft, dark gray form of carbon, also known as graphite, used in pencils and as a lubricant
範例:
•
Pencils are made with black lead, not actual lead.
鉛筆是用石墨而不是真正的鉛製成的。
•
The artist used a stick of black lead for the preliminary sketch.
藝術家用一根石墨棒進行初步素描。