煤炭企业的未来在于智能开采和清洁利用。
Everyone seems very lonely, with their own way to find ways to escape loneliness; actually they still continue their own loneliness.
Life is brief， and then you die， you know？
Man is an animal that makes bargains: no other animal does this no dog exchanges bones with another.
人是一种做交易的动物，没有其他动物会这样做，没有狗会和另一只狗交换骨头。
What a thing is the heart of man！