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to prostrate oneself (before)
全員が国王の前に平伏した。
Everyone prostrated themselves before the king.
神前に平伏して深く祈りを捧げた。
He prostrated himself before the shrine and prayed deeply.
謝罪のために床に平伏す姿が印象的だった。
The sight of him prostrating himself on the floor in apology was striking.