Iron plays a very important part in the reactions in our cells that produce damaging free radicals, which glom onto cell membranes and DNA, and may translate into aging the cell.

而铁元素在我们的细胞中产生一种具有破坏性的，能渗透进细胞膜和DNA并老化细胞的物质的过程中扮演着重要的角色。

youdao

These iron-rich cells are the most common type of blood cell and they play the leading role in transporting oxygen around the body.

这些富铁细胞是血细胞中最常见的类型，它们在给全身运输氧气的过程中起着主导作用。

youdao

The only feature in my cell aside from walls and bars was an iron shackling ring in the floor.

除了墙壁和铁栏杆以外，这间号房唯一的特色就是地上拴着圆环铁镣。

youdao

We see high HgA1Cs that are accurate measurements, but not reflective of glucose control in people with low red cell turnover from iron, vitamin B12 or folate deficiency.

CNN: Why do my A1C results from different sources vary?

Dr Zettl and his colleagues constructed their memory cell by taking a particle of iron just a few billionths of a metre (nanometres) across and placing it inside a hollow carbon nanotube.

ECONOMIST: Monitor