[英语]句子成分分析 - GMAT语法To ensure consistently high quality in its merchandise,the chain of retail stores became involved in every aspect of its suppliers’ operations,dictating not only the number of stitches and the width of the hem

[英语]句子成分分析 - GMAT语法To ensure consistently high quality in its merchandise,the chain of retail stores became involved in every aspect of its suppliers’ operations,dictating not only the number of stitches and the width of the hem
[英语]句子成分分析 - GMAT语法
To ensure consistently high quality in its merchandise,the chain of retail stores became involved in every aspect of its suppliers’ operations,dictating not only the number of stitches and the width of the hem in every garment but also the profit margins of those suppliers.
这句话里的以dictating开头的从句是修饰前一个句子里的某个句子成分的吗?
还有一个问题,the chain of retail stores是单数吗?是把连锁店看成一个整体吗?那要特指其中一个连锁店该怎么说?

[英语]句子成分分析 - GMAT语法To ensure consistently high quality in its merchandise,the chain of retail stores became involved in every aspect of its suppliers’ operations,dictating not only the number of stitches and the width of the hem
To ensure consistently high quality in its merchandise,the chain of retail stores became involved in every aspect of its suppliers’ operations,dictating not only the number of stitches and the width of the hem every garment but also the profit margins of those suppliers.
以上句子结构为：一个主句,带了两个状语,其中两个状语逻辑主语,都是主句的主语：也就是 The chain of the retail stores
句子主句为：the chain of retail stores became involved in every aspect of its suppliers’ operations,
第一个位动词不定式目的状语：To ensure consistently high quality in its merchandise
第二个为现在分词做伴随状语：dictating not only the number of stitches and the width of the hem every garment but also the profit margins of those suppliers.
To ensure consistently high quality in its merchandise (动词不定式做目的状语）（属于非谓语动词充当副词的用法,做目的状语）
（意思：一直确保高质量的商品）
the chain of retail stores become involved in every aspect of its suppliers'operations（主语+连系动词+表语+状语的结构）（意思：零售连锁店牵连到它的所有供应商业务操作上的每一个方面）
dictating not only the number of stitches and the width of the hem in every garment but also the profit margins of those suppliers （现在分词短语作伴随状语）
意思：口述/命令/指示：不仅仅是缝线的数量 以及每件衣服褶边的宽度,而且要考虑那些供应商利润空间

是分词开头的表示伴随情况。
是看作整体，因为后面用了ITS。
可以用ONE OF RETAIL STORES IN THE CHAIN。