名词
中文翻译：折叠式
同义词：
['double fold', 'bifold', 'double-folded']
例句：
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1.This book has a bifold cover that opens to reveal more pages.
这本书有一个双折封面，可以展开查看更多页面。
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2. The designer created a bifold wallet that is both stylish and functional.
设计师创造了一个双折钱包，既时尚又实用。
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3. The bifold doors in the kitchen are easy to open and close, making it convenient for cooking.
厨房里的双折门很容易打开和关闭，烹饪时非常方便。