heart cell

例句：

1. 1.The heart cell is responsible for the heart's ability to pump blood.
   心脏细胞负责心脏泵血的能力。
2. 2. Heart cells are responsible for maintaining the heart's health and function.
   心脏细胞负责维护心脏的健康和功能。
3. 3.Researchers have discovered that certain types of cells in the heart can be transformed into heart cells.
   研究人员发现，心脏中的某些类型的细胞可以转化为心脏细胞。