主要是讲述现在和过去的变化,基本符合您的要求.
In the recent years,the economy of city develops quickly.In the past,people lived in a low house,the students studied in an old school,the farmers planted crops with the help of farm animals.Nowadays,the situation is different.People live in a tall building,students study in a moderm school and the farmers plant crops with the help of farm machines.The city becomes better and better.