on bended knees

例句：

1. 1.She knelt before the altar and prayed for forgiveness.
   她跪在祭坛前祈祷宽恕。
2. 2.The old man knelt on the floor, his head in his hands.
   老人跪在地上，双手托着头。
3. 3.The king knelt down to kiss the queen's hand.
   国王跪下来吻女王的手。