The food issue is not only an economic issue, but also a political one, related to the long-term stability of the country.
粮食问题不仅是经济问题，更是政治问题，关系到国家的长治久安。
The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
Sustainability isn't a trend—it's a responsibility we owe to future generations.
The best way to invest is to look at what’s happening in the real world and invest accordingly.