诗人必须像一棵树，扎根于故土，从中汲取养分才能结出果实。
A poet must be like a tree, rooted in his native soil, drawing nourishment from it to bear fruit.
Innovation and technology will be key drivers in reducing the carbon footprint of oil and gas operations.
Investing in cleaner coal technology is an investment in the future of energy.
The role of business is to produce products and services that make people's lives better—while using fewer resources—and to act lawfully and with integrity.