This model is not the simple extension of the simple interest model, but the round improvement of the model and its related algorithm.
该模型不是简单兴趣模型的简单扩充，而是模型和相关算法的全面改进。
The utility model has the advantages of simple structure, low cost, various functions, and strong interest, which is an ideal toy for developing children intelligence and outdoor activities.
本实用新型结构简单、成本低廉、功能多样、趣味性强，是开发儿童智力和户外活动的理想玩具。
When the utility model with simple structure is used, only the two building blocks are required to be spliced together to form a character, which brings enormous interest;
本实用新型结构简单，使用时， 只需要将两块积木块拼接在一起，组成一个字，趣味性高；
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