名词
中文翻译：交换封面
同义词：
['exchange cover', 'exchange cover sheet', 'swap covers']
例句：
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1. Thebook's hardback cover is made of leather.
这本书的硬皮封面是用皮革做的。
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2. She exchanged her old phone for a new one.
她用她的旧手机换了一个新手机。
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3. The artist exchanged the painting's original cover for a reproduction.
艺术家把原作的封面换成了复制品。