任务说明：根据提示，准备90秒，用1分钟向客户介绍 

1.4

理解人物，完善拓展要求

说明特征features

告知优势advantages

阐释benefits

（三方面）first 分层叙述

问候（good moring），名号（i am jack from Four Stars Computers），目的（讲述为何来），

I am talking to you from features,advantages and benefits.

First,，features. ....

Second,，advantags....

（compared to your old XXX，this one works ...）

Third，benefits....

（Some of you may complain about .... But this one ...)

Having said this much, i highly suggest that you think about it and don't miss the chance to ...

老师发音好好听

建议给自己编个名号

为何而来

可间接说明产品的优点

结尾

capacity  容量