铅笔用英语怎么说？视频讲解版

厨房墙壁上用铅笔画下的身高标记已经成为历史。

Forget growth marks scratched in pencil on the kitchen wall .

琳达用铅笔作画，画龄已经超过40年了。

Linda has been drawing with pencil for over 40 years .

铅笔芯里的石墨就是由多层石墨烯组成的。

Layers of graphene make up the graphite found in pencil lead .