介词短语
中文翻译：到
同义词：
['to the core', 'to the heart', 'to the essence例句：1. The book is about the history of the United States to the backbone.（这本书讲述了美国历史的核心内容。）']
例句：
-
1. The book is about the history of the United States to the backbone.
这本书讲述了美国历史的核心内容。
-
2. The company's strategy is to the backbone of its growth strategy.
公司的发展战略是其增长战略的核心。
-
3. The project aims to the backbone of sustainable development.
该项目旨在可持续发展的核心。