The Foreign Ministry has issued a flat denial of any involvement.

外交部已断然否认与此有任何牵连。

《柯林斯英汉双解大词典》

But does that insult to existence, that flat denial in which it is plunged come from the fact that it has no meaning?

但是，这对存在的侮辱，一股脑的完全否定，真的是因为生命没有意义吗？

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But with an official investigation underway, even a flat denial from Wahid's office won't still the rumors.

CNN: Newsmakers

Of course, Apple's flat denial of the far-fetched story didn't stop technology writers and others on the internet from having fun with it.

CNN: Steve Jobs ninja story won't die on Web

But the National Bullying Helpline's chief executive, Christine Pratt, contacted the BBC to say a flat denial sent out the wrong message and she would expect Downing Street to follow "due process" and look into complaints.

BBC: Cameron calls for inquiry into No 10 bullying claims