carry the day (在战斗、辩论或体育竞赛中）获胜，取胜

【例句】
Mr Bernanke is likely to carry the day, but the question is how decisive the Fed is willing to be.
伯南克有可能获胜，但问题在于美联储到底有多坚决。

It is a telling response. But it may not carry the day forever.
这个回答固然有力，但恐怕不会永远占据上风。