纳头便拜[nà tóu biàn bài]
词典bow one's head to the ground：纳头便拜。
词典bow low：纳头便拜。
词典纳头便拜
词典knock one's head on the ground：纳头便拜。
词典kowtow to ...：纳头便拜。
bow one's head to the ground; bow low; knock one's head on the ground; kowtow to ...; prostrate oneself before sb.