Confidence is key in any competition.
在任何比赛中，自信都是关键。
Collaboration between governments, scientists, and the fishing industry is key to solving the crisis in our oceans.
诗歌是表达不可言说之物的艺术。
The most exciting thing is when you suddenly see the solution to a problem that has been puzzling you for a long time.
个人的行为并非以社会福利最大化为目标。
Something deeply hidden had to be behind things.
真正爱国者的职责是保护他的国家免受其政府的侵害。