Sustainability isn't an option; it's a necessity for the future of our planet.

写作的行为是一种乐观的行为。如果你觉得这无关紧要，你就不会费心去做。

The most important thing is that we develop an interest in the world and take joy in our fellow human beings.

食品安全是水产养殖的生命线，任何时候都不能放松。