depression
/dɪˈpɹɛʃən/ 名词 B1中文： 洼地、凹地、低气压、低压
- A state of mind producing serious, long-term lowering of enjoyment of life or inability to visualize a happy future; any of several mental disorders with this state of mind as a central feature. · I used to suffer from depression, but now I'm mostly content with my life.
- A period of low morale or unhappiness (a period of experiencing the above-mentioned state of mind) which lasts longer than several weeks and may include ideation of self-inflicted injury or suicide.
- An area that is lower in topography than its surroundings.
- An area of lowered air pressure that generally brings moist weather, sometimes promoting hurricanes and tornadoes.
- A period of major economic contraction.
- Four consecutive quarters of negative, real GDP growth (for example, this operational definition is used by the US NBER and many other writers). · The Great Depression was the worst financial event in US history.
- The act of lowering or pressing something down. · Depression of the lever starts the machine.
- A lowering, in particular a reduction in a particular biological variable or the function of an organ, in contrast to elevation.
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The sudden extinction of the moccoletti, the darkness which had replaced the light, and the silence which had succeeded the turmoil, had left in Franz’s mind a certain depression which was not free from uneasiness.
Even the triumphant issue of his labours could not save him from reaction after so terrible an exertion, and at a time when Europe was ringing with his name and when his room was literally ankle-deep with congratulatory telegrams I found him a prey to the blackest depression.
A few minutes later she brought in three covers, and we all drew up to the table, Holmes ravenous, I curious, and Phelps in the gloomiest state of depression.
You can imagine my exultation, Watson, when within two inches of my peg I saw a conical depression in the ground.
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