Innovation in quarrying isn't just about machinery; it's about vision and sustainability.

I don’t think you should spend much time being unhappy about the bad breaks. You get a lot of them, but you also get a lot of good ones. The thing to do is just to maximize your odds of using the good ones and minimizing the effects of the bad ones.

解释：药物之间有阴阳、子母、兄弟等配对关系，说明药物配伍的原理。