求翻译：If you choose 5-Business-Day, a $15 flat rate will be charged for all orders. If you choose 2-Business-Day, a $25 flat rate will be charged for all orders. Shipments of orders to Alaska, Hawaii, Puerto Rico, US Virgin Islands, Guam, Marshal Islands, Northern Mariana Islands, Samoa and any P.O. boxes are shipped via U.S. Postal Service Priority Mail and orders will be shipped. 5-Business-Day and 2-Business-Day delivery options are not available for these destinations. Please allow 5 to 10 business days for delivery to the destinations. RalphLauren.com is proud to offer shipping to APO addresses. The delivery time for APO shipments may vary.是什么意思？

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