There's many a slip between the cup and the lip ! Who knows what may happen?

事情往往 功败垂成,谁知道会发生什么?

《简明英汉词典》

Philip: Only they didn't because the Real goalie made a fantastic save.

菲力浦: 只是他们功败垂成.皇马守门员救球救得好.

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Although they tried very hard, they failed on the verge of success because of improper approach.

他们付出了很大的努力, 但终因方法欠妥功败垂成.

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They think they'll win the election easily, but there's many a slip's twixt cup and lip.

他们以为能在选举中轻易取胜, 但事情往往会功败垂成.

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