phragmata

例句：

1. 1. The spider has eight legs, each with a fang.
   蜘蛛有八条腿，每条腿上都有一对钳子。
2. 2. The scientist observed the process of segment formation in the cell.
   科学家观察了细胞中形成段的过程。
3. 3.The study revealed that the segmentation of the embryo is crucial for development.
   研究显示，胚胎的分段对于发育至关重要。