deep in thought with a bowed head, pondering deeply, in a quandary

💡 Nuance & Usage: An idiom describing a state of deep contemplation, often accompanied by a dejected or puzzled expression, with one's head bowed. Implies struggling to find a solution to a difficult problem. 難しい問題について深く考え込み、頭を垂れて困惑している様子を表す慣用句です。解決策が見つからずに悩んでいる状態を指します。