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Included in your self-image are the categories in which you place yourself, the roles you play and other similar descriptors you use to identify yourself.
出自-2013年6月听力原文
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Consumers are less concerned about safety in high-tech products than categories like fresh and processed food.
2015年12月六级真题（第二套）听力 Section C
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It is certain that the Census procedures, which lump the online sales of major traditional retailers like Walmart with "'non-store retailers" like food trucks, can mask major changes in individual retail categories.
2019年6月六级真题（第一套）阅读 Section B
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Now sort your list into two categories: positive emotions and negative emotions.
2016年12月六级真题（第二套）听力 Section C