upheaval

动乱；剧变

upheaval

剧变

upheaval

1. a state of violent disturbance and disorder (as in politics or social conditions generally); "the industrial revolution was a period of great turbulence"

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2. a violent disturbance; "the convulsions of the stock market"

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3. (geology) a rise of land to a higher elevation (as in the process of mountain building)

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4. disturbance usually in protest

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