钢铁工业是一个国家经济实力的反映。
The steel industry is a reflection of a nation's economic strength.
We kid ourselves if we think that the ratio of procedure to data in an active data-base system can be made arbitrarily small or even kept small.
Pressure can either burst pipes or make diamonds.
采矿业的可持续性不是一种选择，而是我们未来的必然需求。
无论你变得多么优秀，你总能变得更好，这才是最令人兴奋的部分。