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同义词： proprietorship
"`Tylenol' is a proprietary drug of which `acetaminophen' is the generic form"
以上来源于: WordNet
ADJ Proprietary substances or products are sold under a brand name. 品牌专卖的 [正式] [ADJ n]
...some proprietary brands of dog food.
…一些专卖狗粮的品牌。
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