the introductory include
介绍性内容包括
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Also, many books include introductory sections and brief biographies of the authors.
此外，许多书都有引言以及作者简介这两部分。
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New attractions on Liberty Island will also include introductory guides to the statue using laser lights to pick out certain features.
BBC: NEWS | Americas | New York's 'Lady Liberty' reopens
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