translation.en: I know what happens in the brain, when you do become in love, but I don't know why you fall in love with one person And so, I've spent the last three years on this.
translation.zh: 我所知道的是人们恋爱时，大脑中到底发生了什么， 但我却不知道 为什么他就是你命中注定的爱人。 所以，这三年我都在思考这个问题。 心理学家告诉我们