In a purely biological sense, fear begins with the body's system for reacting to things that can harm us—the so-called fight-or-flight response.

从纯粹的生物学意义上讲，恐惧始于身体系统对可能会伤害我们的事情的反应，也就是所谓的“战或逃反应”。

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They are not destroying anything, but reacting to how the system is gradually destroying itself.

他们不是在摧毁一切，而是对体系如何逐渐地摧毁其自身做出回应。

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The cause in each case is an oversensitive immune system that is reacting to harmless materials as well as to the pathogens it is supposed to be fighting.

引起这些情况的原因在于过分敏感的免疫系统，它将这些无害的物质当作它要对付的病原体一样进行反应。

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Using a force control system reacting to the pressure on the feet, HyQ can navigate and traverse irregular surfaces and adjust its pace to overcome obstacles of different sizes and shapes.

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So the idea behind beta blockers for preventing PTSD is that if you can prevent the body's stress system from reacting strongly to a trauma, you might be able to reduce the brain's fear and horror response.

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The essentials of the model, that system dynamics, in reacting to small changes in demand, have a huge detrimental impact on capacity levels, were introduced by Jay Forrester at the Massachusetts Institute of Technology in the 1960s.

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