A player cannot determine whether a long blade of grass, a twig, a tumbleweed or some similar natural object interfering with his swing through the green is loose or is attached to its roots.

• 问：一名球员不能决定妨碍到他在果岭通道上挥杆时的一叶绿草、一个小枝、一棵风滚草或者其他相似的自然物体是否是松动的或者是连着根附着的。