bog; marsh; swamp; quagmire; morass
quandary; dire situation from which one cannot extricate oneself; imbroglio
雨で足が泥沼にはまった。
My feet got stuck in a muddy bog due to the rain.
予算案の審議は泥沼の戦いとなった。
The deliberation on the budget bill became a drawn-out quagmire.
この泥沼から抜け出すのは本当に難しい。
It's truly difficult to escape from this quagmire.