When the pangolin senses danger, it will curl up into a ball, making it almost invincible in the wild.

当穿山甲感觉到危险时，它会蜷成一团，使它在野外几乎无敌。

The uneven surface messes up the smooth path of air around the ball, making it much harder for the wake to form into a clean cone.

不平坦的表面扰乱了球周围空气的平滑路径，使尾流更难形成干净的圆锥体。