能源需求与环境保护之间的平衡是我们这个时代的挑战。
The balance between energy needs and environmental protection is the challenge of our time.
The best way to gain self-confidence is to do what you are afraid to do.
企业的边界由一体化成本与市场交易成本之间的权衡决定。
Secrets are like shadows - they grow longer with time.
在商业和生活中，诚信是我们所做一切的基础。