这种几乎透明的新功能实现或迁移是大部分项目的目标，但通常却没有实现。

This almost-transparent implementation or migration to new function is generally a goal of most projects, but it is often not achieved.

youdao

尽管之前探讨过系统没有用户的问题，但许多LAMP应用程序都利用这种功能性来控制访问、实现url重写，因此有必要理解其工作原理。

Despite the earlier discussion about not having users on the system, many LAMP applications use this functionality to control access and for URL rewriting, so it's wise to understand how it works.

youdao

该功能目前还没有实现，但预计将在未来的一到两个小时内完成。

The feature isn't live yet but is expected to be within the next hour or two.

youdao