1. Cave exploration, or pot-holing, as it has come to be known, is a relatively new sport.
    洞穴勘查--或洞穴勘探--是一项比较新的体育活动。

2. I bought this little pot as a souvenir of Spain.
    我买了这个小壶作为游西班牙的纪念品。

3. It is impossible to give a satisfactory explanation for a pot-holer´s motives.
    要想对洞穴探险者的动机作出满意的解释是不可能的。