It could be a virus, or it could be all in the mind.

这可能是种病毒，或者可能全是凭空想像。

《柯林斯英汉双解大词典》

You see, "we" are a virus of the mind.

你看，“我们”相当于心智的病毒。

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State of mind of encircle a city prevents virus market to exist likewise in China.

围城心态在中国防病毒市场同样存在。

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State of mind of encircle a city prevents virus market to exist likewise in China.

围城心态在中国防病毒市场同样存在。

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