cardiocairograph

例句：

1. 1. The doctor used an electrocardiogram to diagnose the patient's heart condition.
   医生使用心电图诊断患者的心脏状况。
2. 2. The patient was taken to the hospital for further testing and treatment.
   患者被送往医院进行进一步的测试和治疗。
3. 3. The study found that regular exercise can improve heart health and reduce the risk of heart disease.
   研究发现，定期锻炼可以改善心脏健康并降低患心脏病的风险。