Let's test our example against the core level of abstraction principles.

让我们对照核心抽象层次原则来测试我们的示例。

youdao

Core Level 0 refines the abstract idea of resources to add XML particulars.

核心级0精化了资源这个抽象概念，增加了XML的具体特性。

youdao

To rebuild our self-image and bolster our self-esteem we need to start on a very core level.

重塑自我形象与鼓舞自信心，我们需要起步于核心层次。

youdao

There are some individuals who impact only a handful of people, but their impact is felt at a core level.

FORBES: Start With Your Obituary

You can be protected by receiving a core level of defined benefit and can plan your retirement with the knowledge of this safety net.

BBC: MONEY TALK

One could argue that social networking, at least at its core level, is a healthy activity: it contains human interaction, thoughtfulness and even a splash of compassion.

ENGADGET: This is the Modem World: Digital junk food