Seven-day Refund Policy:If buyers are unsatisfied within 7 days since they sign for the merchandise,sellers should support the refund requests when further impact on future sale can be prevented. 中文句子本身就不完整（可能是受前后语境影响而省略了一些……）,因此我完全可能翻译反了……
Returned seven days: 7 days after receipt of goods, if the goods are not satisfied, without prejudice to the seller under the premise of secondary sales and support returned request.
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