自然实验可以为经济问题提供有价值的见解。
我不害怕重新开始。
Animal welfare isn't just ethics—it's good science and good business.
我们都被过去所困扰,过去总是存在的。
The challenge is to make the audience believe in the character, not in the actor.
谈判时,勿以抢更多的蛋糕为目标;以做一个更大的蛋糕为目标。