Sentence Explanations 作为海湾战争的准备, 美国和其同盟者在被 认为不可能的时间内, 必须超远距离地运输 大量军需品。 1. As a precursor to the Gulf war it had been necessary for the United States and its allies to move huge amounts of material great distances in what were thought to be impossibly short time-frames.1. As a precursor to the Gulf War it had been necessary for the United States and its allies to move huge amounts of material great distances in what were thought to be impossibly short time-frames. Sentence Explanations