Martinotti's cell

例句：

1. 1. The cell is thebasic unit of life on Earth.
   细胞是地球上生命的基本单位。
2. 2. The study of cellsis essential for understanding the human body.
   研究细胞对于理解人体至关重要。
3. 3. Cells are responsible for allthe functions of the body.
   细胞负责身体的所有功能。