人声是最美的乐器，但也是最难演奏的。
The human voice is the most beautiful instrument of all, but it is the most difficult to play.
I'm the reason your clock won't tick.
石油开采的创新不是可选项，而是满足世界能源需求的必要条件。
You can’t be a writer unless you’re a reader first.
The future of energy is low-carbon, and natural gas will play a vital transitional role.
所有的儿童都有吸引文化的能力。