[shuǐ shēn huǒ rè]
The water is deep and the fire is hot.; be in deep distress; be plunged into dire suffering; be plunged into the [an] abyss of misery; deep water and scorching fire -- an abyss of suffering; extreme misery; in dire suffering; keep ... in suffering; live in great [utter] misery; live in the abyss of suffering
Their lives were filled with untold suffering.; They lived in an abyss of misery.
他们生活在水深火热之中。