The term refers to the habit we all have of thinking — consciously or not — that once something has had contact with another thing, their parts are in some way joined.

心理感染一词是指我们所有人都有的思维习惯，自觉或不自觉地，当一件事与另一件事相接触时，两者间有部分以某种形式相交。

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Those were not the only times Mr. Obama may have overestimated himself: he has also had a habit of warning new hires that he would be able to do their jobs better than they could.

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