1,我们每天都应该保持室内空气干净清新

1. We should keep the air clean and fresh in the room every day.
2. An appale a day, keep doctor away.(俗语）
3. Bacteria can enter the human body through all parts.
4. We can not eat unhealthy food.
5. What else may cause headache?
楼上的有些语法不太通

1. Every day we should keep indoor air clean and fresh.
2. One day an apple, so you do not see a doctor.
3. Bacterium can lead in various parts of the body enter the body.
4. We can not eat unhealthy food.
5. There is what caused the headache.

1 everyday we should keep the indoor air clean and fresh
2 one apple each day keeps doctor away
3 bacterium can lead in from different parts of our body
4 we should not eat unhealthy food
5 what else can cause headache
以后好像是用翻译软件翻的