同学们还记得一些老电影中这样的画面吗?邮递员骑着墨绿色的自行车,车子后架两侧挂着邮包,里面装着挂号信和普通信件。每当经过谁家门前便喊一嗓子:“××,拿你的信!”拿信的人则是那么的好奇和期待,而且总是会有惊喜发生。随着时代变迁,特别是网络时代的到来,这样的场景只能停留在回忆中了。如今人们已经很少写信了,取而代之的是打电话,聊QQ等等。其实,在电话和QQ之前,人们还有一种重要的通信方式—— Students still remember some of the old movie in such a picture? Mailman rides a dark green bicycle, car back frame hung on both sides of the parcel, which contains the registered mail and ordinary letters. Every time you pass through someone’s door shouted a voice: “XXX, get your letter! ” The letter is so curious and looking forward to, and there will always be surprises happen. With the changing times, especially the advent of the Internet age, such scenes can only stay in memory. Nowadays people have seldom write letters, instead they just call, talk to QQ and so on. In fact, before the phone and QQ, people still have an important way of communication -