通讯录，一般的通讯录都有这些信息：姓名、电话、地址、生日等等，不会再错过朋友生日之类，可以说通讯录的有效利用增进了朋友之间的友谊。-Address book, contacts generally have these information: name, phone, address, date of birth, etc., will not miss a friend s birthday and the like, can be said to effectively use the address book enhanced the friendship between friends.