她虚张声势地威胁要辞职，但其实根本没这个打算。

She ___bluffed by threatening to quit, but had no real intention of doing so.

我们在河边的一座悬崖上野餐，景色非常壮观。

We had a picnic on a ___bluff by the river, enjoying the spectacular view.

他直率的性格起初可能会让人惊讶，但大家很快就被他的真诚所打动。

His ___bluff manner might surprise people at first, but they soon warm to his sincerity.