If you do something once, people will call it an accident. If you do it twice, they call it a coincidence. But do it a third time and you've just proven a natural law.
未说出的往往比说出的更有力量。
The future of petrochemical industry lies in sustainable development.
One of the greatest ways to avoid trouble is to keep it simple...the system often goes out of control.
可持续性不再是可选项;它是企业长期生存的必要条件。