抽象的力量使数学能够超越物理现实的限制。
We've had three big ideas at Amazon that we've stuck with for 18 years， and they're the reason we're successful:Put the customer first. Invent. And be patient.
成功是一段旅程，而不是终点。
As a clean energy source, natural gas will play a significant role in China's energy structure adjustment.
We're at the beginning of a new era where AI can help solve some of the world's most challenging problems.