To watch the HTTP headers in action, let's build, install, and run an HTTP reverse proxy to cache the output of a small PHP application.

要查看HTTP报头如何工作，让我们构建、安装并运行一个HTTP反向代理来缓存一个小型PHP应用程序的输出。

youdao

Of course, if an application confidently does something that a user doesn't like, it must have the capability to reverse the operation. Every aspect of the program's action must be undoable.

当然，如果程序自信地做了用户不乐意的事，必须有能力执行撤销操作，程序行为的每个方面都必须是可撤销的。

youdao

Reverse jet action distance, can use long big filter bag, make full use of space, cover an area of an area small.

反吹风作用距离大，可采用长滤袋，充分利用空间，占地面积小。

youdao

In the current term, the court is deciding a case involving an affirmative-action policy at the University of Texas, and the court may reverse at least part of a 2003 ruling that allowed some consideration of race in university admissions.

WSJ: Voting Act Under Scrutiny