经济学家的角色既是科学家,又是工程师。
真正的进步不仅仅以利润来衡量,还以我们对社会的积极影响来衡量。
Collaboration across industries is key to solving global food challenges.
"Memory is a fragile thing, easily distorted by time and emotion."
I always try to be positive and enjoy every moment.
解释:货卖完了才知道不足,是由于不懂得计量;事情结束了才知道有余,是由于不懂得调节。