它是自动进行的，我们每年都在没有察觉的情况下进行超过一千万次呼吸，但我们也可以主动控制呼吸。

It is automatic, we take over 10 million breaths per year without noticing, but we can also control breathing voluntarily. Think of breathing as how we can communicate with our bodies.

youdao

它是自动进行的，我们每年都在没有察觉的情况下进行超过一千万次呼吸，但我们也可以主动控制呼吸。

It is automatic, we take over 10 million breaths per year without noticing, but we can also control breathing voluntarily. Think of breathing as how we can communicate with our bodies.

youdao