纤毛

例句：

1. 1. The cell's surface is covered with a layer of tiny fibers called microvilli.
   细胞的表面覆盖着一层叫做微纤毛的微小纤维层。
2. 2. These fibers are so fine that they can be seen only under a microscope.
   这些纤维非常细小，只能在显微镜下看到。
3. 3. The fibers in the fabric are strong and durable, making it ideal for outdoor use.
   这种面料中的纤维很强壮耐用，非常适合户外使用。