Silver surfer refers to the population of individuals over the age of 50 who utilize the internet on a consistent basis. 

“银发上网族”指的是经常上网的50岁以上的网络使用者。

The number of older users has increased dramatically over the past several years due to their being more accustomed to the technology. 

由于老年人越来越习惯于使用网络科技，“银发上网族”近年来人数大幅攀升。

Research shows that the silver surfers are spending a majority of their time using search engines and online shopping sites. 

研究显示，“银发上网族”会花费大量的时间使用搜索引擎和逛网店。