他老是记不起把自己阅读时用的放大镜放在什么地方，所以助手们会随身携带备用的。He misplaces his reading glasses with such regularity that aides carry extras.大货车载着备用的弹药。The wagons carried spare ammunition.我可能需要一套备用的衣服。I might need a spare set of clothes....
They have enviable reputations as athletes.作为运动员，他们的声望令人羡慕。Schools with better reputations will be flooded with applications while poorer schools will be left high and dry.较有名气的学校将会收到如潮水涌至般的申请，而差一些的学校则会陷入招生困境。Personal re...
The blades at its periphery throw off air centrifugally in a direction following the rotation.轮周叶片将空气沿着转动方向抛离轴心.The defects of alloy steel pipe centrifugally cased are drawn. Their causes and preventives are analysed.归纳出...