从务实角度来说，音乐电视网的生存依赖于把年轻人市场卖给广告商。Pragmatically, MTV's survival depends on selling the youth market to advertisers.卖T恤衫来钱容易，比领救济金好。T-shirts are a nice little earner and it's better than the dole.出版商预计该书至多能卖出1,500本...
奇点研究的顶峰是两个著名的变换定理.The culmination of the work on singularities is two famous transformation theorems.按着我们现有的物理知识, 奇点产生的任何辐射永远不会出来.According to our present understanding of physics, any radiation produced by the singulari...
Consider a family of parallel lines that cut the conic.设有一组平行线与圆锥曲线相交.The circular points are really a degenerate conic.虚圆点实际上是一退化的二次曲线.A family of parallel lines cut the conic.有一组平行线与圆锥曲线相交....