In 50 years,our life has undergone earth-shaking changes.In the past my elder sister and my parents live in a small house,we are very poor,but we're happy.Now,our lives have changed dramatically,we live in a high-rise building.In the past only without TV,listen to the radio.Now we have to MP3,television and computer entertainment equipment.In the past,we travel can ride a bicycle.Now,train,plane,ship,everything.Anyhow,the life we are living now is very rich,I love my family.