Nowadays people vividly describe the mail - order service “ an invisible supermarket ” as they can order goods by letter , telephone , fax or computer , and have them delivered quickly to their door through the network of china post 人們現在把郵購業務生動地比作“看不見的超市” ,因為他們可以通過信函,電話,傳真和電腦訂購物品,并通過中國郵政網迅速地收到所購物品。