graphite 石墨
pencil lead 铅笔芯
black mineral 黑矿物
1. The artist used black lead to draw the sketch.
艺术家使用石墨来绘制素描。
2. Graphite is often referred to as black lead.
石墨常被称为黑铅。
A: Do you prefer using ink or black lead?
A：你更喜欢用墨水还是石墨？
B: I prefer black lead for my sketches.
B：我素描时更喜欢用石墨。
1) 石墨
2) 铅笔芯材料
3) 一种黑色的矿物
1. 石墨
e.g. This pencil uses high-quality black lead.
这支铅笔使用的是优质石墨。
noun
1. Graphite; a form of carbon used in pencils.