引用李商隐《锦瑟》诗句,表达对往事的怅惘
实验室是想象与现实相遇的地方,常常伴随着爆炸性的结果。
The farmer is the only man in our economy who buys everything at retail, sells everything at wholesale, and pays the freight both ways.
采矿效率不仅仅是削减成本,而是在减少浪费的同时最大化价值。