“Every flow must have its ebb” 被译成“人有悲歡離合，月有陰晴圓缺”，或“有潮起必有潮落”，或“有盛就有衰”。

潮人A：可否说成“every up must have its down”？

还真没有，不过却有“what goes up must come down”，有起必有落嘛。