Question

Five years in the writing, her new book is both a response

Five years in the writing, her new book is both a response to her critics' mistrust with her earlier findings and an elaboration of her original thesis.

five years in the writing 是什么意思？ 主句主语是book， 难道是book in the writing? 句子语法结构是什么？

Answer 1

five years in the writing,意思是book在五年的writing中，主句主语的确是book。并不是book本身在写，，，，前面应该是表被动。
"five years in the writing"，，独立主格结构
"her new book"，，主语
"is"，，谓语
"both a response to her critics'
mistrust with her earlier findings and an elaboration of her original thesis"，，表语（比较复杂）