Collaboration across borders is essential to solving global food challenges.
一个设计良好的系统应该易于使用、易于理解和易于修改。
The best way to understand labor markets is to look at real-world data, not just theoretical models.
预测蓬勃发展的积极情绪与消极情绪的比例约为3比1。高于这个比例,人们往往会蓬勃发展;低于这个比例,人们往往会萎靡不振。