Macy’s reported its sales plunged 5.2% in November and December at stores open more than a year, a disappointing holiday season performance that capped a difficult year for a department store chain facing wide|ranging challenges.
1. a disappointing holiday season performance that capped a difficult year ...
that 是什么用途？
2. 逗号后面无需加连接词么
3. stores open more than a year
为何直接用open？能不能写成 stores which have been opened more than a year.
逗号后是一个名词词组，并非句子，所以无需连词。that是关系代词引导定语从句，并在从句中作主语，修饰a disappointing holiday season performance。这个名词词组是前面句子的句子同位语。假如在这个名词词组前加上which was，就成了which引导非限制性定语从句了，which的先行词为前面主句的内容。 stores open more than a year 应该为 stores that have been open for more than a year 或者 opened more than a year before.
