variability

例句：

1. 1. The weather can be quite variable throughout the year.
   一年中，天气变化很大。
2. 2. This recipe requires a lot of variability in measurements.
   这个食谱需要很大的测量变异性。
3. 3. Variability is an important factor in determining the success of a project.
   变异性是决定项目成功的一个重要因素。