矿工的头盔不仅保护头部——它还象征着辛勤工作的尊严。

Enterprises must fulfill their social responsibilities, promoting environmental protection and sustainable development while ensuring energy supply.

权力平衡是维持国际体系和平的唯一途径。

I have called this principle, by which each slight variation, if useful, is preserved, by the term Natural Selection.  

Travel, like dreams, is a door that opens from the real world into a world that is yet to be discovered.

艺术的真正力量在于它质疑权力本身的能力。

精准农业不是为了取代农民——而是为了用更好的工具赋予他们力量。