求翻译：您购买的iPhone自购买之日（以发票日期为准，下同）起7日内，出现国家三包所规定的功能性故障时，您可以选择退货、换货或免费维修；当同样的情况出现在第8日至第15日内时，您可以选择换货或免费维修；当同样的情况出现在购买之日起一年内，您的iPhone可以享受免费保修服务。是什么意思？

When you purchased the iPhone from the date of purchase (invoice date, the same below) within 7 days, appear under the functional failure of National Warranty, you can choose to return, replacement or free repair; the same situation In the 8th to 15 days, you can choose a replacement or free repair;

Your purchase of iPhone from the date of purchase (invoice date, whichever is appropriate) 7 days, the event of State 3 package provides the functionality, you can choose a return, replacement or maintenance free; when in the same circumstances in the first 8 to 15 days, you can select replacement o

You purchase when iPhone date of from the purchase (take receipt date as, similarly hereinafter) in 7th, appears the functionality breakdown which the national three packages of institutes stipulated, you may choose return goods, exchange goods or the free service; When the similar situation appears

You purchased of iPhone since purchased of day (to invoice date for associate, with) since 7th within, appears national guarantees by provides of features sexual fault Shi, you can select return, and replacement or free maintenance; Dang also of situation appears in subsection 8th to 15th days Shi,

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