fractals/ˈfræk.təl/名词分形,碎形(数学里,利用简单的形状,将其不断重复,每次重复都把形状缩小,如此构成的复杂的不规则线条或图案)The way that the trunk of a tree divides into smaller and smaller branches and twigs is an approximate fractal pattern.树干逐渐分成小树枝、嫩枝的方式类似一个不规则碎片形。想跟读,去练习