Years of research shows that arts education is closely linked to almost everything that we as a nation say we want for our children and demand from our school.
没we as a nation say我还能理解，加上我就不知道了。
没we as a nation say 我还能理解，加上我就不知道了...
【答】we as a nation say 是个插入成分，插在定语从句中，具体地方是在关系代词之后。
这叫做“混杂式定语从句”，或者“嵌入式定语从句”。
解析如下：
有时，定语从句的关系词与从句中的句子成分之间，插入类似
I think/believe/guess/expect 与 I am sure,they say，we say 等插入语，这种定语从句被叫做混杂式定语从句。
Jocelyn is the only person who we expect will win.乔斯林是大家期望唯一能胜的人。
Many college students have mastered computer, driving and foreign languages,which we all know are the most important things in todays society.
不少大学生都学会了计算机、驾驶和外语，大家都了解这类在当今社会是尤为重要的。
