The concept of self-care, at its core, is quite simple.

自我护理的概念，其核心是相当简单的。

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youdao

Edison's bulb is, at its core, a burning filament that casts the glow of a flame.

爱迪生的灯泡，在它的中心，有一个燃烧的灯丝产生火焰的光芒。

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"However,what Egypt did undermine, to an extent,especially in the last two years, has been to combine its legitimate defense of national security concerns with a wider appeal to Arab interests and Palestinian interests at the core of them,".

VOA: standard.2009.11.03

It's kind of a shocking movie and unpleasant and very violent but at its core, one of the main themes is right out of Intro Psych.

这是一部惊悚片,基调阴郁，并且十分暴力,但这部影片的核心，它的主题之一便源于心理学导论中的内容。

耶鲁公开课 - 心理学导论课程节选

Bright and jangly at its core, his is still an identifiable sound guitarists seek to emulate.

WSJ: Still Close to His Roots | Johnny Marr | Cultural Conversation by Jim Fusilli

At its core, this story tackles the ever-ripe (and always-controversial) topic of women aging in Hollywood.

FORBES: Why Julia Roberts' Age Will Work In Her Favor

If you think about it, cloud computing is, at its core, focused on applications.

FORBES: Private Cloud Computing: It's All About The Apps