以下係我本書教既氣體轉換.......係英文黎....唔係好明D內容...麻煩幫我翻譯一下~~~
Oxygen in the air diffuses through the walls of the air sacs into the
blood. The blood then carries oxygen to all of the body cells.
Carbon dioxide is produced by the body cells during respiration.It is
carried by blood to the lungs. In the lungs,carbon dioxide diffuses
from the blood into the air sacs. Finally,carbon dioxide passes
through the bronchi and trachea,and is then breathed out.
麻煩晒大家...但請唔好用D翻譯工具......因為我想理解清楚氣體交換到底係咩! So,唔該晒大家!!!!!