They need 12 votes to override his veto.

他们需要12票来推翻他的否决。

《柯林斯英汉双解大词典》

The president vetoed the bill, and the Senate failed by a single vote to override his veto.

总统否决了议案，而参议院因一票之差未能推翻他的否决。

《柯林斯英汉双解大词典》

His veto was something of a surprise.

他的否决一定程度上是令人惊讶的。

youdao

But there were enough votes to reject his veto and pass the new laws.

VOA: special.2009.04.30

But Congress passed the bill into law over his veto.

VOA: special.2010.04.29

But the legislature quickly overruled his veto.

VOA: special.2009.05.21

Everyone thinks Bush will finally locate his veto pen if Democrats pass growth-killing tax hikes.

FORBES: Political Musings From The High Seas

President Clinton has yet to unholster his veto pen, though he is threatening again albeit reluctantly.

CNN: From Charles Bierbauer

Poland's europhile President, Aleksander Kwasniewski, also opposes the moves and could wield his veto.

ECONOMIST: Strains between governments and their central banks