现在，所有要将configuration类型的对象实例化的尝试都会出错，因为系统认为该类是抽象的并且不完整。

Now, any attempt to instantiate an object of type Configuration results in an error because the class is considered abstract and incomplete.

youdao

当实例化一个模板，不完整的参数类型成员应该可见吗？

When instantiating a template, should members of its incomplete argument types be visible?

youdao

这种不完整的通信类型，在这种期望是没有清楚列明的，是很混乱，导致问题。

This type of incomplete communication, in which expectations are not clearly spelled out, is very confusing and leads to problems.

youdao