a concise summary of the book
这本书的简明摘要
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The book provides both a concise summary of a wealth of evidence about retirement decisions and a handy guide for middle-aged Americans on how to stay well-off when they hang up their shoes.
该书不仅总结了制定退休政策的各类证据，而且还为美国的中年人献计献策，指导他们如何保证在退休以后丰衣足食。
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