Javascript对象数组，共享同一成员数组的对象？

I have an array of objects (this object also contains an array of it's own) I'm not sure why, but when I push some values onto the member array of one instance of the object in the array of objects it also seems to push onto the other member arrays on all other array of objects. I have provided my code below:I have an array of objects (this object also co