单元：Module 04.txt

• cough
• fever
• headache
• stomach
• ache
• stomach ache
• ill
• this
• since
• cold
• catch a cold
• take
• take sb. temperature
• fast food
• health
• well
• heart
• active
• pet
• member
• take part in
• condition
• in excellent condition
• sleepy
• then
• daily
• weak
• illness
• exercise
• awful
• feel awful
• all over
• perhaps