Every ton of coal we extract must create maximum value with minimum environmental impact.
我们开采的每一吨煤炭都必须以最小的环境影响创造最大的价值。
What we need to do is make batteries safer, more efficient, and more environmentally friendly.
最大的风险是不冒任何风险。
The novel is a kind of mirror that reflects the world.
世界不是一个愿望工厂。
The reason why men enter into society is the preservation of their property.
