Now the fungus forms these complex networks underground of fine filaments thinner than even threads of cotton.

现在真菌在地下形成的这些复杂网络，它们的这些细丝比棉线还细。

At the top of each hair bundle, as you can see in this image, there's a fine filament connecting each of the little hairs, the stereocilia.

在这张图里能看到，在每一簇毛束的顶上，都有一根纤细的丝，把每根叫做静纤毛的小纤毛连接起来。