請幫我看看這是什麽意思

Note: USPS® Insurance, available at Post OfficeTM locations, provides coverage up to $5000.00 USD. Insurance purchased online cannot be combined with insurance purchased at a Post OfficeTM. Terms and Conditions

我通過Paypal 打標簽寄東西，可是不知道從網上買的保險是不是管用。本來E文就不靈光。這個"combined"把我弄暈了。它想表達什麽意思啊？謝謝

所有跟帖： 

• 回複： -star-night- ♂ (99 bytes) () 10/03/2010 postreply 06:53:38

• 回複：回複：謝謝你老兄 -小本生意- ♂ (0 bytes) () 10/07/2010 postreply 17:44:55