We are making a service platform for international students. Main info on this platform should include “buying and selling cars, furnitures, textbooks, used cars, housing renting or leasing” and so on which can be traded over our platform. Sellers who use this platform can post what they want to sell which the post must be audited by us(developer). Buyers can also buy stuff on this platform from sellers. Buyers and sellers can also text to each other on this platform without giving out their phone numbers and email addresses.