It was the first of 14 records in a row that sold over a million copies each.
问题描述：
It was the first of 14 records in a row that sold over a million copies each.
这句话是强调句吗?
如果是的话，sold的主语是the first，还是14 records？
后面的each是怎么回事
答
不是强调句,it是主语（唱片）,was是系动词,the first of 14 records 是表语,后边修饰the 14 records.