不要让恐惧阻止你追求梦想。
柴油发动机可以使用植物油作为燃料,这将极大地促进使用该技术的国家的农业发展。
You don't have to be great to start, but you have to start to be great.
The future energy structure will be diversified, and the coal industry needs to find its own positioning.
The worst pain is not the pain itself, but the loneliness of suffering.