platinum keywords下面的注释:(Use this field only if you are a Platinum Merchant. This is used for defining the platinum keywords of your product. Child items should only use Platinum Keywords that are also assigned to the associated parent items.) 所以只有铂金高级卖家才有必要填写,向国内的一般的卖家可以忽视这个选项不用填,而且了一点用也没有。
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