A forest is more than a collection of trees; it's a living, breathing ecosystem that sustains life.
Fishery modernization is not a slogan, but a goal that requires down-to-earth efforts.
The study of L-functions is a window into the hidden structure of numbers.
煤炭的未来取决于我们创新和减少其环境影响的能力。
避免争论是赢得争论的唯一方法。