double height converse style ladies shoes.怎么翻译

double height converse style ladies shoes.怎么翻译 c#构造函数：:this(new Rect(x,y,width,height)) public QuadNode(double x,double y,double width,double height):this(new Rect(x,y,width,height)){}public class QuadNode{}他本身是来自这个类,他为什么要重载自己,有什么作用? double double double double double double double double Double double double double double double double double