这些是我的祖父母。
这些书是我父母和祖父母花了毕生的精力收集来的，它们成为我童年的一部分。
The books, collected by my parents and grandparents throughouttheir lifetimes, were a part of my childhood.
这些书籍是由我的父母亲和祖父母用一生的心血收集而成，成为我孩提时代生活的一部分。
The books, collected by my parents and grandparents throughout their lifetimes, were a part of my childhood.
这些书籍是由我的父母亲和祖父母用一生的心血收集而成，成为我孩提时代生活的一部分。
The books, collected by my parents and grandparents throughout their lifetimes, were a part of my childhood.
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