遗传研究应该为人类服务,而不仅仅是商业利益。
The rise of China and the resurgence of Russia have challenged the idea that liberal democracy is the only viable form of government.
Sustainability isn't an option—it's a necessity if we want to feed a growing population without destroying our planet.
每部电影都是一次旅程,每次旅程都是一部电影。