"Freedom is not worth having if it does not include the freedom to make mistakes."

世界就是一本书，不旅行的人只读了其中一页。

Innovation in natural gas extraction is key to meeting the world's growing energy demands while reducing environmental impact.

农业科学家的责任就是让土地多产粮食，让农民多收粮食。

诗歌应当像利剑一样锋利。