Leading US retailers are this year expanding their Christmas sales drive by targeting smartphone users through the new generation of mobile devices such as the Apple iPhone, the Palm Pre and BlackBerry's Storm.
美国主要零售商今年不断扩大圣诞季销售力度，借助苹果(Apple)的iPhone、Palm Pre和黑莓(BlackBerry)的Storm等新一代移动设备，瞄准了智能手机用户。
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