The magical number seven, plus or minus two: some limits on our capacity for processing information.
神奇的数字七,加减二:我们信息处理能力的一些限制。
The role of oil and gas companies is evolving, and we must evolve with it.
当我看着这个世界时,我是悲观的,但当我看着人们时,我是乐观的。