boot shaped cell

例句：

1. 1.The boot-shaped cell is the first structure in the human body to form.
   靴形细胞是人体最早形成的结构之一。
2. 2.The boot-shaped cell plays a crucial role in the immune system.
   靴形细胞在免疫系统中起着至关重要的作用。
3. 3.Researchers have discovered new ways to manipulate the boot-shaped cells for medical purposes.
   研究人员已经发现了新的途径，可以操纵靴形细胞用于医疗目的。