原因似乎是社会学方面的：与那些年老的同事相比，伴着电子通信技术成长起来的年轻的工作人员觉得更没什么必要打印文件。
The explanation seems to be sociological: younger workers, who have grown up with electronic communication, feel less need to print documents than their older colleagues.
文件是否被打印与配置有关系，相关内容在FreeBSD手册中有所涉及。
Whether or not the file actually prints depends on configuring it, which is covered in the FreeBSD handbook.
事件跟踪可以用来测量网站上的各种行为，比如PDF文件下载、页面打印、与页面滚动的互动和视频观看等。
With event tracking, you can measure all kinds of activity on your website such as PDF downloads, printing pages, interaction with a slidehow, watching videos and much more.
应用推荐