respiratory heart

例句：

1. 1.The respiratory system is responsible for the exchange of gases between the lungs and the body.
   呼吸系统负责肺部和身体之间气体的交换。
2. 2. The respiratory heart is a vital organ that pumps blood throughout the body.
   呼吸心脏是一个关键的器官，它泵血全身。
3. 3. During sleep, the respiratory heart slows down to allow the body to rest and recuperate.
   在睡眠期间，呼吸心脏会减慢，以便让身体休息和恢复。