variability是什么意思

n.可变性

1. The variability of the weather makes it difficult to plan outdoor activities.
天气的变化多样性使得很难计划户外活动。
2. The variability in test scores suggests that the students' performance varies widely.
考试成绩的变化表明学生的表现存在很大差异。

变化性；多变性；可变性。