respiration dead space

例句：

1. 1. The lungs are responsible for the body's respiration.
   肺部负责人体的呼吸。
2. 2. During sleep, the body undergoes a state of respiration.
   在睡眠期间，身体经历一种呼吸状态。
3. 3.Athletes need to maintain proper respiration during intense exercise.
   运动员在剧烈运动中需要保持适当的呼吸。