因此，从理论上对信用缺失进行系统地分析和探讨，是现实的需要，也是经济学研究不能回避的重大课题。

Therefore, to systematically analyze and search into the credit lack is not only practical need but also an unavoidably important subject in the economics investigation.

youdao

现实的问题是，我们到底需要多少肉，以及如何来生产它们？

The real questions, then, are how much meat do we want, and how will we produce it?

youdao

但一旦踏上这个现实的世界，你需要意识到现实主义和理想主义之间是有一条鸿沟的。

But you realise the gulf between realism and idealism once you reach the real world.

youdao

The sort of thing that perhaps we might call or think of as abstract objects or abstract properties.

这类事物,我们可能需要称作或认为是抽象的现实,或抽象的性质

耶鲁公开课 - 死亡课程节选