【正确答案】
(Student's sample)
Losing weight has many ways. One way is to have medicines. The second approach is the limit of meat. But these two ways are harmful to health in the future. The third one is exercise every day, this will help us lose weight and improve health.
(Improved sample)
To lose weight, we have many ways. One way is to take medicines. Another approach is to set a limit to high calorie food. But both of the two ways are harmful to health in the long rim. The third one is to do physical exercises every day, which will help us lose weight and keep fit.