my friend 假如你叫mary,你有

one of my best friends,who is very fat and likes to eat rabbish food .What's worse,he don't like to take exercise and he often feels tried.It's very easy for him to catch a cold.So his body is weak and he must always go to hospital.
As his friend,I am unwilling to see these.So I would like to give him some suggestions.Firstly,he should eat the rabbish food as little as possible.Secondly,he must take more execrise to keep healthy.