Abstract: I welcome you to the fourth issue of the IEEE Communications Surveys and Tutorials in 2021. This issue includes 23 papers covering different aspects of communication networks. In particular, ...

作为一名专注职场效率工具的小编，最近半年我收到最多的吐槽来自销售客服群体——“上周陪新人跑客户，他记的笔记漏了三个关键需求，回来复盘时急得直拍大腿”“客户投诉物流破损，翻了半小时录音才找到问题核心，客户早就不耐烦了”“销售谈判时 ...