如果他能从堵塞的高速公路脱身，然后从出口回归原点，那么他的生活轨迹是否能改变呢？
What if he got out on the gridlocked freeway and went down the emergency exit; would the course of his life change?
那么，改变一下区域，把这块移到另一侧，我们得到对xdA的双重积分,是原点那的圆面积乘质心的x的坐标。
So, switching the area, moving the area to the other side, I'll get double integral of xdA is the area of origin times the x coordinate of the center of mass.
它改变的不仅是艺术形态和审美观，还有艺术逻辑原点命题。
What it change are not only the art appearance and esthetic senses, but also the art logic to original question.
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