定语从句 简单的说就是用一个句子当形容词（比如lucy-幸运的）修饰另一个句子（作名词boy-男孩）
which接的定语从句是修饰前面的句子sentences此时every book i picked up had few sentences是主句部分,后面which didn't contain anywhere from one to nearly all of the words 是定语从句.
few did't 双否表示肯定
contain from ...to...包含sth到sth
累死我了,这可是我一个个打的哦.如有错误,全当无视!