当公司介绍一个另外的项目以新味道，形式，颜色，或包裹大小在一个指定的产品类别和以同样名牌，这称线性延伸。
When a company introduces an additional item with a new flavor, form, color, or package size in a given product category and under the same brand name, it is called a line extension.
所谓名牌服装就是这种文化的不断延伸和扩张。
The so-called famous brand is an constant extension of this culture.
所谓名牌服装就是这种文化的不断延伸和扩张。
The so-called famous brand is an constant extension of this culture.
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