Do not do plastic surgery will be able to make single eyelids become double-fold, the most direct way is to use double fold tool.

不去做整形手术就能让单眼皮变双眼皮，最直接的方法就是利用双眼皮工具。

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Social collaboration, its tool and technologies have opened up a multi-fold channel of idea exchanges, knowledge creation, classification, and searching.

社会协作、工具和技术疏通了想法交流、知识创建、分类和搜索的多种渠道。

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Briefly, the objectives of the tool are two-fold.

简而言之，该工具的目标有两部分。

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But its function is two-fold: planning tool and beautifully photographed coffee-table book.

FORBES: 36 Hours In 150 Places, from Taschen and the New York Times