债务要么产生于契约，要么产生于侵权行为。

The world needs responsible mining now more than ever.

"The real challenge in AI is not just building intelligent machines, but building machines that can learn and adapt."

The key to global competitiveness is local adaptability.

可持续经济增长的关键在于资源的有效配置和持续创新。

我不是时尚达人。我就是时尚。