金发女孩儿和三个正方形的故事：形状——奇思妙想学数学 （美）马卡罗内（Maccarone,G.）等编写,刘浏 译 外语教学与研究出版社【正版开发票】

The items bear minimal signs of past use, such as light scratches or memories in the form of markings. These signs of wear give the items a charming character and tell stories of their previous owners, while not affecting their functionality.