They then took a bag from each area and sorted it into different material types, to give a representative sample of the type of waste that the school produces.
他们从每处提取一个袋子然后把它进行类别分类，这样可展示学校生产的有代表性的垃圾样品。
The Comprehensive park is the most representative city park park type, with its large area, activities varied, functional area clear, complete facilities and activities popular.
而综合性公园是城市公园中最具代表意义的公园类型，以其面积大，活动内容多样、功能分区明确、活动设施完善而深受市民欢迎。
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