translation.en: The economic challenges facing us are hard, but when I walk the factory floor, and I see how humans and brilliant machines are becoming interconnected, and I see the difference this makes in a hospital, in an airport, in a power generation plant, I'm not just optimistic, I'm enthusiastic.
translation.zh: 我们面临的经济挑战很艰难， 但是当我走进工厂， 看到人类和绝顶聪明的机器 相互协作， 我看到这将给 医院、机场， 和发电厂带来的变化。我不仅乐观， 我还非常期待。