His versions provide much of the information that is in full-length books but in an easy-to-understand,picture,or comic,
问题描述：
His versions provide much of the information that is in full-length books but in an easy-to-understand,picture,or comic,form.
这句话里的 that is in full length 是什么句型 该怎么理解
答
这是一个定语从句,修饰前面的information,意思是他的译文提供了大量来自标准书籍的信息.