cardiac atrophy

例句：

1. 1. Theheart is the primary organ responsible forcirculating blood throughout the body.
   心脏是负责将血液输送到全身的主要器官。
2. 2.Cardiologists specialize in the diagnosis andtreatment of heart diseases.
   心脏病学家专门从事心脏病的诊断和治疗。
3. 3. Thepatient's cardiac arrestwas treated successfully with defibrillation.
   患者通过电击复苏成功恢复心跳。