这场经济危机引发了社会的巨大动荡。
The economic crisis caused major social ___upheaval.
经济危机导致了社会的巨大动荡。
The economic crisis caused significant social ___upheavals.
搬到新城市后，他经历了一段情感上的动荡期。
After moving to a new city, he went through a period of emotional ___upheaval.
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