孩子单独的电话线
Separate Phone Lines for Teens来源：考试大
 
　　除了家里人共用的电话外，十多岁的孩子一般都想有自己单独的电话。他们一方面想要避开其他家庭电话，另一方面想和朋友私下里长时间聊天。现在，随着手机的出现，任何人随时都可以接进自己的私人电话，与好友及家人保持联系。
 
　　The teenager's desire for having his or her own phone line apart from the family phone arose from a desire to circumvent other family phone calls and to be able to have private contact with friends for lengthy periods. Now, with the advent  of the cellular phones, a private line is readily accessible to anyone who wishes to maintain personal contact with close friends and family alike.来源：考试大