breakup instability

例句：

1. 1. Thecouple's relationship was marked by frequent arguments and a high level of instability.
   这对夫妇的关系经常争吵，并且非常不稳定。
2. 2. The financial crisis led to a breakdown in the partnership between the two companies.
   金融危机导致两家公司之间的合作关系破裂。
3. 3. The team's performance has been characterized by instability and lack of consistency.
   团队的表现一直不稳定，缺乏一致性。