疼痛算是一种自然防护机制的作用。

Pain acts as a natural defence mechanism.

《牛津词典》

查尔斯·达尔文是第一个描述自然选择在物种形成中的作用的人，他描写了物种形成的机制。

Charles Darwin, the first to describe the role of natural selection in speciation, wrote about the mechanisms of speciation.

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要想让团队决策发挥作用，你需要有一种方法来梳理他们提出的各种方案，你还需要一种机制来缩小这些选择的范围。

For group decision-making to work well, you need a way to sort through the various options they propose: and you need a mechanism to narrow down these options.

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Normally, we do these things to keep an equilibrium among the different systems of the unconscious, but sometimes it doesn't work.

一般来说，我们会运用这些机制,去维持无意识系统的平衡，但有时防御机制也会不起作用。

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And then for a lot of students too, what this mechanism does is it just takes the edge off a course like this.

对于大多数学生来说，这种机制同时也会削弱,此类课程的作用。

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Sometimes things go awry and what happens is a phrase that's not currently used in psychology but was popular during Freud's time: hysteria.

当防卫机制不起作用时,就会造成一种病症,其名称在如今的心理学领域已经不常用到,但在弗洛伊德的时代,这是个非常流行的名称：,这就是癔症。

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