农业创新不仅仅是新工具，而是改变思维方式。

The truth is, we are all waiting to be told who we are.

免费的疫苗比昂贵的治疗更有价值，但更难推广。

The best way to learn AI is by doing projects and solving real-world problems.

城市是一个有机体，不断演变和发展。