distress; anguish; mental suffering
部下の苦衷を察してやるべきだ。
You should be considerate of your subordinates' distress.
苦衷を打ち明けるのに勇気が要った。
It took courage to confess my anguish.
彼の苦衷は誰にも理解されなかった。
His distress was not understood by anyone.