最近季節交替，天氣忽冷忽熱，要好好保重身體，不要感冒囉! *cough咳嗽 *common cold一般感冒 *flu流感 *If you have a cold, you should go to see a doctor. 如果你感冒了，應該去看醫生。 *I think I have the flu or the common cold because my head is swim...