As for this, there is a deep background.

至于这个，有一个深刻的背景。

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A closeup showing deep background with sharp sidewalls.

阿特写镜头显示，尖侧壁的深层背景。

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The difference of crust-mantle complexity provides deep background for the development of strong earthquake.

壳幔边界复杂性的差异为强震的孕育提供了深部环境。

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Nobody wants to hear the words "And we see from our deep background check that Sir enjoys the Journal"!

CNN: What your hotel knows about you

"The elementary teacher in general does not have deep background in science, " said Francis Eberle, executive director of the National Science Teachers Association.

CNN: Subject Matters: Science has an image problem

As discussed in yesterday's posting, the question of attribution is very complicated, and a lot of the most interesting discussions of the last few days have been on the basis of deep background.

ECONOMIST: European politics