The chart illustrates the process of recycling wasted glass bottles and making new ones. Overall, the production of new bottles by recycled bottles follows a procedure of moderate complexity, going through a number of steps.

行文的结构上而言，可以没有conclusion；但是，行文的内容上而言，不可以没有overview。如果没有conclusion, 就把overview写在introduction里。

The first stage is that the disposed glass bottles are collected and then transported. 关系近的步骤写在同一个句子里：动词的并列平行把两个step在同一个句子陈述。关系远的步骤分句子写  The bottles are then sorted by their colors, categorized as the brown ones, green ones and transparent ones. 关系远的步骤分句子写 è After the sorting, the next stage takes place in the glass factory, and the bottles, in the first place, are broken into glass pieces, and then melted in the furnace, in which the heat is within 600 to 800 degrees. 关系近的步骤写在同一个句子里：动词的并列平行把两个step在同一个句子陈述。关系远的步骤分句子写 Next, as the glass melts into the liquid, the liquid is blended with new glass liquid, and then the mixture is poured into the molds and shaped into new glass bottles. 关系近的步骤写在同一个句子里：动词的并列平行把两个step在同一个句子陈述。关系远的步骤分句子写  At the final stage, when the new bottles are made, they are filled with drinks, and the bottled drinks are sent to the supermarket for sale.  关系近的步骤写在同一个句子里：动词的并列平行把两个step在同一个句子陈述。