创新是市场引入新的技术流程、产品或组织形式。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

每一种东西的价格都会因时间和地点的不同而涨落；每一次这样的变化都会改变货币的购买力。

Sustainability isn't a buzzword—it's a commitment to future generations.

We must plan for future development with a global perspective and actively participate in international energy governance.

自然嘲笑积分的困难。