The importance of mailboxes and mailboxes in life
When it comes to communication tools between people, in China, the first thing everyone thinks of is WeChat. Many people are uncomfortable as long as they don’t use WeChat for a while. But in the United States, the first thing people think of must be the mailbox . In addition to e-mail, in the United States, you also need a real mailbox, which is a mailbox. Just like in a residential building in the United States, there is a row of mailboxes on each floor against the wall, and each sub-box has a corresponding unit number. When the postman delivers the letter, he uses the key to open the master lock, lifts the entire panel of the mailbox, distributes the letter and various mail items into each sub-box, and then locks it. Each household has its own key to separate boxes. The first thing after going home every day is to open the mailbox to get the letter. There are many types of letters in the United States. Putting aside useless advertisements, various documents that are really useful i...