Having studied hard in my science subjects, I thought I stood a good chance of gaining high grades.理科的课程我学得很努力, 得高分的可能性很大。

Paul doesn't stand a chance against Tom.保罗根本不是汤姆的对手。

They were crammed so tight that many stood no chance of escaping.他们被紧紧地挤在一起, 很多人都没有逃脱的机会。