The challenge of our time is to create a sustainable energy future.
我们这个时代的挑战是创造一个可持续的能源未来。
The challenge for policymakers is to create an environment where information flows freely and efficiently, enabling markets to function optimally.
我这样绘画是因为我想与世界达成和解。
Wrinkles should merely indicate where smiles have been.
