跨国合作是解决全球粮食安全挑战的关键。
Collaboration across borders is key to solving global food security challenges.
Advertising doesn't create a product advantage. It can only convey it.
社会系统是个人与个人之间、群体与群体之间关系的网络。
经济理论提供工具,但现实世界的测试会完善它们。
"I love the challenge of playing against the best players in the world."