在一个不精确的世界中,模糊集的概念提供了一种自然的方式来处理那些不精确性源于缺乏明确定义的类别成员标准的问题。
He had a way of making her feel safe, even in the most uncertain of times.
The best things in life are free.
Sustainability isn't a trend—it's a responsibility we owe to future generations.