on the chance of

• The study ， by professor richard wiseman of the psychology department of the university of hertfordshire ， found carrying a charm had no effect on the chances of choosing winning lottery numbers
  由赫特福德郡大学心理系教授理查德怀斯曼进行的研究发现拥有这一魔力对选择彩票的中奖号码没有效。