地球是一个动态的物体，其表面在不断变化。
大萧条不是市场的失败，而是政策的失败。
Aquaculture isn't an alternative to wild fisheries; it's a partner in preserving them.
我不让未来定义我，我让它磨砺我。
As a clean energy source, natural gas will play a significant role in China's energy structure adjustment.