And these shapes can be varying as a function of time, and you'll see these robots start from a circular formation, change into a rectangular formation, stretch into a straight line, back into an ellipse.
这些形状会根据时间发生变化， 你们看到这些飞行器 从一个圆形开始， 接着变为长方形， 然后变成一条直线， 又变回椭圆形。