名詞 upheaval:

1. a state of violent disturbance and disorder (as in politics or social conditions generally)
   同義詞：turbulence, Sturm und Drang
2. a violent disturbance
   同義詞：convulsion, turmoil
3. (geology) a rise of land to a higher elevation (as in the process of mountain building)
   同義詞：uplift, upthrow, upthrust
4. disturbance usually in protest
   同義詞：agitation, excitement, turmoil, hullabaloo

1. The prediction or expectation of cataclysmic upheaval, as in political or social developments.
   巨變的預測如在政治或社會發(fā)展中對劇烈變動的預測或預期
2. The French Revolution was a volcanic upheaval in European history.
   法國大革命是歐洲歷史上的火山爆發(fā)。