cardiac

例句：

1. 1.The heart is the organ responsible for pumping blood throughout the body.
   心脏是负责将血液泵送到身体各个部位的器官。
2. 2.Cardiologists specialize in the diagnosis and treatment of heart diseases.
   心脏病专家专门从事心脏病的诊断和治疗工作。
3. 3.The patient was taken to the hospital for further cardiac testing.
   患者被送往医院进行进一步的心脏测试。