That was a flat out lie.

那完完全全是弥天大谎。

youdao

That was a flat out lie.

这完完全全是一个骗局。

youdao

That allegation is a flat-out lie.

那一个指控是彻底的谎言。

《柯林斯英汉双解大词典》

Now that, quite frankly, is a flat-out lie.

现在，非常坦率地说，那就是一个弥天大谎。

youdao

Now that, quite frankly, is a flat-out lie.

现在，非常坦率地说，那就是一个弥天大谎。

youdao