一名警方狙击手开枪打死劫持者门多萨，但是那时，8名人质已经被杀。

A police sniper killed the hijacker, Rolando Mendoza, but not before the eight were killed.

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而网上单向拍卖存在的“狙击手”、“网下窜谋”、“赢者诅咒”等问题，容易降低用户的满意度；

Further, because of these problems in online auctions, such as"slamming", "winner's curse", it easily result in decreasing the rate of customer's satisfaction;

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而网上单向拍卖存在的“狙击手”、“网下窜谋”、“赢者诅咒”等问题，容易降低用户的满意度；

Further, because of these problems in online auctions, such as"slamming", "winner's curse", it easily result in decreasing the rate of customer's satisfaction;

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