Because the nail is a living material, so they have the appropriate structure.

因为指甲是一种有生命的物质，所以便具有相应的结构。

youdao

That is why we take the living material around us as subject matter for education.

所以我们要把自己周围活生生的事物作为教材。

youdao

But instead of just putting down ink on paper, they stack up layers of living material to make 3-d shapes.

但和在纸上喷墨不同，他们将层层活性物质累积从而制造一个3d物体。

youdao

That general class of molecules is called receptors and its shown here just as a block of material living in the cell membrane.

这一类分子叫做受体,在这里看起来就像是,生活在细胞膜内的物质

耶鲁公开课 - 生物医学工程探索课程节选

"As a living material, wood is both challenging and inspiring, " Kantonen says.

CNN: Spectacular forms in wood

Crick, along with James Watson and Maurice Wilkins, was given the 1962 Nobel Prize for Physiology or Medicine for "discoveries concerning the molecular structure of nucleic acids and its significance for information transfer in living material".

BBC: Francis Crick and sketch of the DNA structure

Scientists have for the first time created laser light using living biological material: a single human cell and some jellyfish protein.

FORBES: Scientists Create A Living Laser