Ability to mock concrete classes and interfaces.

模拟具体类和接口的能力。

youdao

Recall the earlier discussion on using interfaces versus concrete classes.

回想一下之前关于使用接口还是具体类的讨论。

youdao

To map our two concrete classes (Lease and Property), we will use the XML tag.

要映射两个具体类(Lease和Property)，就要使用XML标签。

youdao

Classes were held in the original buildings, several massive concrete units known collectively as the Cellblock, a bike ride or long walk away from the dorms, and the flow of students back and forth in tribal swarms seemed part of the architecture of the place.

NEWYORKER: Midnight in Dostoevsky

The fact is that the upper classes really are taking money from the poor in a very real and concrete way.

FORBES: Average America vs the One Percent