microbrachia

例句：

1. 1. The scientist useda microscope to examine the microscopicstructures of the sample.
   科学家使用显微镜来检查样本的微观结构。
2. 2. Theresearcher found that microbrachia play an importantrole in the growth and development ofplants.
   研究者发现，微细的手臂在植物的生长和发育中起着重要的作用。
3. 3.The microbrachia are tiny anddelicate, making them difficult to see withthe naked eye.
   这些微细的手臂非常小且脆弱，用肉眼很难看到。