The bar chart illustrates the number of domestic deliver from 2018 to 2020.As it shows,both of urban and rural express rise gently.However,the quantity of the city is much better than the countryside's,which is almost three times than latter. There aretwo reasons lie in this ohenomenon.Top of the list is economy.People's living standard has improved and then they have spare money to shopping online.Chinese facilities built ,for example,high speed way and other transportation. also celebrate the speed of the deliver.Second rreason is convenice.Be busy with working and living ,more and more people prefer to use online service instead of going to malls in person.This can help them save time and compare price directly.