Sustainability is not an option, it's a responsibility.
科学界的女性永远不应怀疑自己改变世界的能力。
You have to work hard to achieve your dreams.
食品体系必须发展以满足不断增长的人口需求。
The greatest events are not always the most important.
受过教育的心灵的标志是能够思考一种思想而不必接受它。