Making a buck is becoming progressively more challenging for brick-and-mortar retailers.Nearly two decades after Amazon.com and others began to chop away at the underpinnings ofthe traditional retailing business model, the pervasiveness of smartphones, the emergence ofthe digitally empowered consumer, and the prospect of one-daydelivery make the future ofphysical retailing seem ever more tenuous.

　　词汇突破：

　　Make a buck 挣钱

　　Progressively 越来越

　　Challenging 挑战性

　　brick-and-mortar retailers 实体零售商

　　chop away at 削弱;动摇

　　underpinning (理论)基础

　　pervasiveness 遍布，普及

　　empower 获得…能力

　　physical retailing 实体销售

　　tenuous 脆弱;

　　句子解析：

　　1. Making a buck is becoming progressively more challenging for brick-and-mortarretailers.

　　对于实体店而言，赚钱变得越来越困难

　　2. Nearly two decades after Amazon.com and others began to chop away at theunderpinnings of the traditional retailingbusiness model, the pervasiveness of smartphones,the emergence of thedigitally empowered consumer, and the prospect of one-day deliverymake thefuture of physical retailing seem ever more tenuous.

　　句子主干：A, B and C make D seem ever more tenuous.

　　A= the pervasiveness of smartphones,

　　B= the emergence of the digitally empowered consumer

　　C= the prospect of one-day delivery

　　其他成分：Nearly two decades after Amazon.com and others began to chop away attheunderpinnings of the traditional retailing business model,时间状语

　　参考译文：二十多前，亚马逊以及其他公司就开始削弱传统零售商业模式的理论基础，智能手机无处不在，消费者拥有了数字技术的能力，快递业可以当日送达，这些都使得实体销售的前景似乎更加岌岌可危。