The discovery of DNA structure was like unraveling a very complex puzzle.
Sustainability isn't an option; it's a responsibility we owe to future generations.
专制主义的力量和权力完全在于对抵抗的恐惧。
认证计划不仅仅是木制品上的贴纸;它们代表了对我们星球的承诺。
Cooperation is the key to promoting the development of global aquaculture.