reversal of polarity

例句：

1. 1. The company's strategy has been reversed due to market changes.
   由于市场变化，公司的战略规划已经改变。
2. 2.The research team found the polarity reversal in the data.
   研究小组在数据中发现了一个极性反转现象。
3. 3.The policy was designed to reverse the polarity of the relationship between education and employment.
   这项政策旨在逆转教育与就业之间的关系极性。