时间总是一个惊喜。你以为你了解它,但其实你并不了解。
"Time is always a surprise. You think you know it, but you don't."
乳制品行业必须适应消费者偏好的变化。
"The truth is not always beautiful, but the pursuit of it is."
The way positive reinforcement is carried out is more important than the amount.