vicissitude
n. 变迁;盛衰;变化无常;变迁兴衰
复数 vicissitudes
例句
Chapter III: Establishment and vicissitude of the principle.
第三章:直接言词原则的确立及其变迁。
So great a vicissitude in his life could not at once be received as real.
他的生活中发生了如此巨大的变迁,他一时还无法相信是真的。