详细解释:n. 变化无常, 变迁, 荣枯, 盛衰
英语解释：
名词 vicissitude:
a variation in circumstances or fortune at different times in your life or in the development of somethingmutability in life or nature (especially successive alternation from one condition to another)例句：
He was battling against the vicissitudes of life.他在每况愈下的生活中奋斗。