海马区旁边有一个被称为‘杏仁核’的结构体，已知在烙下不可磨灭印记中起到一定作用。

A structure next to the hippocampus called the amygdala is known to play a role in stamping this indelible mark.

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现已有一些国家，如南非，利比亚，在一定程度上决定放弃他们的核贡献。

We have examples of countries, like South Africa and, to an extent, Libya, that decided to give up on their nuclear ambitions.

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因为我们知道即使到了无穷远处，尽管电子密度会变得非常非常非常小，但我们仍然有一定的电子密度，无论离原子核多远。

Because we know as we go to infinity, even though the density gets smaller and smaller and smaller, we still have electron density very far away from the nucleus.

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