打电话出现的问题：
I am sorry I dialed the wrong number. 拨错电话
The line is busy/hut/engaged. 占线
The connection is bad. 信号不好
The phone is not clear. 听不清楚
常用表达：
电话本 telephone book /directory
电话听筒 receiver
电话账单 phone bill
挂上电话 hang up
先别挂 hand on
挂掉电话 Line is dead.
别挂电话 hold on for moment
hold the line
给某人打电话 ring sb up
give sb a ring/call
电话自动答录机 answering machine
留言 leave a message
稍等，我马上给你打过去。I will call your back in a minute.
4.职业场景
办公室场景
办公室常见人物：
boss 老板
secretary 秘书
front desk 前台
employee雇员
employer 雇主
interview 面试
interviewer 面试官
interviewee面试者
department 部门
head of department 部门主管
Chief Executive Officer 首席执行官