包括白色背景在内的六种颜色代表了世界上所有国旗的颜色......这是一个真正的国际标志。
The human being cannot live in a condition of emptiness for very long: if he is not growing toward something, he does not merely stagnate; the pent-up potentialities turn into morbidity and despair, and eventually into destructive activities.
对心灵的研究就是对适应行为的研究。
Collaboration between industries and communities is key to preserving our forests.