Root hairs, that's exactly it. So those root hairs were responsible for an incredible chunk of surface area.

根须，正是它。那些根须占据的表面积大到不可思议。

Do you have time for a banana root hair treatment?

这次有时间用香蕉根做头发护理吗？

One study estimated that if you strung the root hairs of a single rye plant end-to-end, it'd be eleven thousand kilometers long.

一项研究估计，如果你把一株黑麦植物的根毛端对端串起来，它将有 11000 公里长。

To make this exchange as efficient as possible, some organisms have evolved specialized exchange surfaces like the alveoli in the lungs or root hairs and plants, or the nephrons and kidneys.

为了使这种交换尽可能高效，一些生物体进化出了专门的交换表面，比如肺泡、根毛和植物，或者肾上腺和肾脏。