MAC商品加入购物车提示not ship via expedited service什么意思？

大家好，想问下MAC今天的满立减50活动，选的锁色弹唇釉加购物车后，提示：This item will not ship via expedited service. Please select standard shipping atcheckout or remove this item from your cart if you would like to ship your ordervia expedited service，这是什么意思啊？是说补发我的配送地址吗？英文不太好，有知道的吗？谢谢。