介绍:
本期节目的要点。。
欢迎大家评论留言
IDD :international direct call
DDD:domestic direct dial
person-to-person call
long-distance call
local call
collect call
pay call
international call
domestic call
emergency call
in-house phone call
morning call or wake-up call
extension number
country code
area code
大家还在听
