Most shops will accept a return within thirty days if you keep the receipt. 只要保留收据，多数商店会在三十天内接受退货。
The item should be unused and in its original packaging. 商品应未使用且保持原包装。
You can usually choose a refund or an exchange for a different size. 你通常可以选择退款，或换成不同尺码。