flip-flop stage

例句：

1. 1. The company's new product launch is expected to be a flip-flop stage.
   该公司新产品的推出预计将是一个翻云覆雨的阶段。
2. 2.During the flip-flop stage, the team worked tirelessly to solve the problem.
   在这个阶段，团队努力不懈地解决问题。
3. 3.The flip-flop stage is often associated with rapid changes and unpredictability.
   翻云覆雨的阶段通常与快速变化和不可预测性联系在一起。