每个矿工的贡献对于保持灯火通明至关重要。
Confidence isn't optimism or pessimism, and it's not a character attribute. It's the expectation of a positive outcome.
The joy of discovery is what keeps me motivated after all these years.
美国的理念对我非常重要。它是关于自由、民主和创造自己命运的能力。
Our strength comes from our people—their expertise, dedication, and passion for what they do.