Observations of a distant galaxy cluster collision reveal a core of invisible matter devoid of glittering galaxies-something that is hard to explain by current theories.
对遥远的星系团碰撞进行观察后，发现了一个不可见物质的核心，然而其中没有星光闪烁的星系，这用目前的理论是难以解释的。
Resource Construction is the core of the Distant Education; high-efficient resource management can improve resource service efficiency and promote teaching better.
资源建设是远程教育的核心，高效的资源管理能提高资源使用效率，更好的促进教学开展。
This sense of loneliness and isolation indicates that we have become strangers to ourselves, distant and cut off from our vibrant and authentic core.
孤单和分离的感觉在说，我们已经对自己变得陌生，疏离了那个跳动的、可靠的核心。
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