姆斯塔圆顶大教堂:four-foot par putt 什么意思？

four-foot par putt 什么意思？ What has four legs,but one foot? What has four legs(腿) and only one foot(脚)？ what has four legs and only one foot? which has four legs and only one foot? What has four legs and only one foot ? What has four legs and only one foot ? 四年级孩子的寒假作业,what has four legs and only one foot? It's___. What has four legs(腿) and only one foot(脚)？It's() I'm something that has four legs and only one foot.What am I?