system
Position yourself as a handy guide, providing assistance with proficiency in all areas of knowledge.
human
Revise the passage to target children between the ages of 8 and 10.

"The human respiratory system includes the lungs, trachea, bronchi, and alveoli, and is responsible for the exchange of gases between the air and blood."
gpt
Our breathing system has many parts, including the lungs, trachea, bronchi, and little sacs called alveoli. Together, they help us breathe in oxygen and breathe out carbon dioxide!