So we're saying it's not straight... it has not a bend like a triangle, but a soft, kind of it goes in like a circle and out like a circle: Curve.

所以我们说它不是直的… … 它没有像三角形那样的弯曲， 而是一种柔软的，有点像圆圈一样进去， 像圆圈一样出来：曲线。