Kneel on one knee
單膝───One knee;下跪───Kneel down
miserable Hatter dropped his teacup and bread-and-butter, and went down on one knee.───可怜的帽商丢掉了茶杯和黄油面包，单膝跪下。
He went down on one knee and asked her to marry him.───他单膝跪下向她求婚。
Raise one knee at a time.───每次抬起一只膝盖。
There was a little girl twirling around on a bar, one knee wrapped tightly around the bar and fashioned behind her knee.───有个小女孩正在一个杠上快速地转动，一条腿紧紧地勾在杠上。
Finally, one of the men turned his back on the maintenance van, went down on one knee, and pointed an unfamiliar object at the sky.───终于，一个人转身背对维修车，单膝跪下，把一件奇形怪状的东西指向天空。
She stumbled to one knee and cried out in pain, hoping against hope that her bear would gather her up and help her to her feet.───痛得她单膝跪地，喊出声来，她多么希望自己的大熊会上前扶她起来。
Did he get down on one knee to propose?
He dropped to one knee and stayed there.
Rincewind got down on one knee, the better to arrange the picture, and pressed the enchanted lever.
He went down on one knee and asked her to marry him.
I went down on one knee to plug in the vacuum cleaner.