每一个剪辑都应该有一个目的，一个存在的理由。
Every cut should have a purpose, a reason to be there.
海洋有其风暴和平静，有其漩涡和洋流。
The mining industry is not just about digging holes in the ground; it's about unlocking the Earth's potential.
Happiness is that state of consciousness which proceeds from the achievement of one's values.
城市的穷人就像树的根；看不见，但对它的生命至关重要。