cardio-

例句：

1. 1. Cardiovascular disease is a major cause of death worldwide.
   心血管疾病是全球死亡的主要原因。
2. 2. The patient's heart rate was elevated during the test.
   患者在测试期间心率升高。
3. 3. The doctor advised him to exercise regularly for better heart health.
   医生建议他定期锻炼以维护更好的心脏健康。