myocardial cell

例句：

1. 1.Myocardial cells are responsible for the heart's ability to contract and relax.
   心肌细胞负责心脏收缩和舒张的能力。
2. 2.The study of myocardial cells has led to new treatments for heart disease.
   研究心肌细胞已经导致了新的治疗心脏病的方法。
3. 3.The doctor examined myocardial cells under a microscope to diagnose my condition.
   医生用显微镜检查我的心肌细胞来诊断我的状况。