depression

despair, desperation, depression, disappointment

这些名词都有“绝望、沮丧”之意。
despair: 普通用词，指因灾难等因素而丧失希望和信心，陷入沮丧，绝望的境地。
desperation: 语气强烈，指因绝望而使人采取无所顾忌的疯狂行动。
depression: 侧重指因遭受重大失利或挫折而产生的低落情绪。
disappointment: 多指愿望或期望的落空。

名词 depression:

1. a mental state characterized by a pessimistic sense of inadequacy and a despondent lack of activity
2. a long-term economic state characterized by unemployment and low prices and low levels of trade and investment
   同义词：slump, economic crisis
3. a sunken or depressed geological formation
   同义词：natural depression
4. sad feelings of gloom and inadequacy
5. a period during the 1930s when there was a worldwide economic depression and mass unemployment
   同义词：Great Depression
6. an air mass of lower pressure; often brings precipitation
   同义词：low, low pressure
7. a state of depression and anhedonia so severe as to require clinical intervention
   同义词：depressive disorder, clinical depression
8. a concavity in a surface produced by pressing
   同义词：impression, imprint
9. angular distance below the horizon (especially of a celestial object)
10. pushing down

1. The threat of an economic depression hangs over the world.
   经济衰退的威胁笼罩着世界。
2. Her feeling of depression was transient.
   她那抑郁的心情一会儿就过去了。
3. Many people were idle during the depression.
   在那萧条时期，很多人都无事可做。
4. During the depression, millions of the unemployed wandered around in the streets.
   经济萧条时期，有好几百万的失业者在街头游荡。
5. In time of depression, there were no enough jobs.
   萧条时期，没有足够的工作机会。
6. He suffers from acute depression.
   他患有严重的抑郁症。
7. A depression over the Atlantic usually brings bad weather in Britain.
   大西洋上空的低气压通常给英国带来恶劣的天气。