花1分钟记住一个词：backup

媒体报道说，布什总统实施新的伊拉克计划之后，一些州长在白宫询问布什和参谋长联席会议主席Peter Pace有没有后备计划，"A group of governors asked President Bush and chairman of the Joint Chief of Stuff Peter Pace about their backup plan for Iraq." ...