铅笔铅的英文：
pencil-lead

pencil是什么意思：
n. 铅笔，色笔，画笔
v. 用铅笔写或涂

Please sharpen this pencil.
请削一削这只铅笔。

I have but one pencil.
我只有一支铅笔。

Please issue everyone with a pencil.
请给每人发一支铅笔。

Pencils are graded according to softness.
铅笔根据硬度分类。

Nobody else has a pencil sharpener.
再没有谁有卷笔刀了。

lead是什么意思：
v. 带领，引导；通往；致使；领先
n. 领先；榜样；线索；导线；铅

Will you take the lead?
你领个头好吗？

Lead poisoning( or plumbism )：Poisoning by accumulation of lead in the body.
铅中毒:铅在体内积累引起的中毒。

The road leads direct there.
这条路直接通那儿。

The dog is straining at its lead.
那条狗正使劲地拖拽皮带。

Put the dog on the lead!
用皮带牵住狗！