“大变动”用英语怎么说

我们从前的一切观念都正在改变, 我们的工作肯定要有很大变动.All our previous ideas are now in the melting - pot ; our jobs are bound to change radically.自去年以来,价格有了相当大变动.Price have changed to a considerable extent since last year.目前是大变动的前夜.We are on t...